Abstract
Among the seven sacraments, marriage alone creates a bond between two people that must go on being sustained for the rest of their lives. Baptism, confirmation and orders alter one person permanently and require nothing further from anyone. The eucharist and penance are complete in each occasion. Anointing of the sick is administered as ongoing coordination is ending. Marriage institutes something different in kind: an interrecursive coordination between two recursively responsive people, sustained across whatever remains of both their lives, on terms the Church has declared unbreakable. This article traces what that institution requires from the Church that oversees it. Because interrecursive futures are jointly produced by the coordination itself rather than settled in advance, no amount of preparation can secure what marriage commits two people to. What the Church can do, and does, is develop an elaborate apparatus that works on the past instead. A declaration of nullity finds that a valid marriage never came into being. Sanation supplies validity retroactively without renewed consent. Both operate on the moment of consent, sometimes decades later, because the future was never available to secure and the past remains open to reorganisation in a way that finished events are not. Preparation itself is best understood not as instruction for the ceremony but as the production of the consent that this apparatus will one day examine.
I. What the Sacraments Institute
Since the 1980s, the Catholic Church has required a preparatory course for couples seeking to be married by a priest. The course runs over many sessions, led by trained lay volunteers, and sits at the end of a sequence the Church itself describes as beginning in childhood. No comparable course accompanies baptism, confirmation, the eucharist, penance, anointing of the sick, or ordination. Locating the reason requires looking at what each sacrament institutes, described in terms of what it requires of anyone afterwards.
Baptism, confirmation and orders are held to imprint an indelible character. Each alters the status of one person permanently, and the permanence requires nothing further from anybody. A person baptised in infancy remains baptised through indifference, apostasy, dementia and death. The alteration is complete at the moment of administration and needs no maintenance.
The eucharist and penance are repeated rather than permanent. Each is complete in its occasion, committing the recipient to no ongoing coordination with a responsive counterpart. Penance is the institution's general repair mechanism for a person's own standing, not for a relation between two people who must go on living together. Anointing of the sick is administered at a point where ongoing coordination is precisely what is ceasing.
Marriage differs from all of these in kind rather than in degree. It does not imprint a character on an individual but creates a bond between two, held to persist until one of them dies. A character is a property of one person. A bond is a relation between counterparts, each of whom changes partly in response to the other's changing responses, so that neither the future of the relation nor the significance of its past can be fixed in advance. That is interrecursive coordination in its most concentrated institutional form, and marriage is the sacrament that commits two people to it for as long as either lives.
The other sacraments alter what a person is. Marriage commits two people to a coordination, and a coordination has to keep happening. Once this is stated, the extent of the preparation that surrounds marriage follows directly: it is close to the minimum an institution could offer when committing two people to several decades of mutual responsiveness on terms it declares unbreakable. It also explains what the preparation covers. Courses of this kind spend very little time on the ceremony itself and a great deal on communication, conflict, money, family, expectations, children and sex, because what is being prepared is a coordination between two people rather than the performance of a ceremony.
II. The Ministers Are the Couple
One feature of the doctrine deserves emphasis, because it makes the argument that follows sharper than any external analysis could.
In the Latin Church, the ministers of matrimony are the spouses themselves. The priest is a qualified witness, and canonical form requires the exchange of consent before him and two further witnesses, but he does not confer the sacrament. The couple confer it on each other. Eastern Catholic Churches take a different view, assigning the priestly blessing a constitutive role, and the divergence is itself informative about how difficult the underlying question is.
No other sacrament in the Latin tradition is administered by its recipients to each other. In every other case, a minister with an office acts upon a recipient. Here, two people with no office act upon each other, simultaneously, and what makes the act effective is their consent.
Two consequences follow. The sacrament is constituted by an interrecursive act: consent is not a state either party has independently but one that is exchanged, each person's consent given in response to the other's and in expectation of receiving it. Withdraw one and the other has nothing to attach to. The sacrament is something a couple does mutually, in the strict sense that neither half of it exists without the other.
Validity also depends on the states of two ordinary people rather than on the correctness of an official's performance. A botched formula is a defect of form and is remediable. If one party did not truly consent, or was incapable of consenting to what marriage involves, no sacrament occurred, whatever anyone observed. The institution has made the effectiveness of the sacrament turn on something interior, mutual and unobservable.
Given that consent is what matters, and that consent is unobservable, the Church has two options: it can attempt to produce and evidence adequate consent beforehand, or it can examine consent afterwards once something has gone wrong. It does both, and the second is by far the more elaborate. Making the couple the ministers of their own sacrament made the validity of that sacrament turn on something the institution cannot see, and everything that follows in this article is a consequence of that arrangement.
III. An Instant That Commits a Lifetime
The temporal structure here is extreme, and worth setting out explicitly.
The ceremony occupies minutes. The exchange of consent occupies seconds. The commitment it creates is indexed to the lifetime of the participants, the longest horizon available to any embodied coordination. No other institutional commitment is indexed this way. Contracts have terms. Offices have tenures. Even life sentences are subject to review. Marriage states its horizon as the death of a party and offers no interval short of that.
Between the seconds and the decades there is nothing. The commitment does not ramp, vest in stages, or become progressively more binding, but is complete at the moment of exchange, covering everything that will happen for as long as either party lives.
Consider what has to be coordinated across that span. Embodiment alone runs from the sub-second attunements of shared attention through sleep, illness, pregnancy, ageing and eventual decline. Being-with runs from the fractions of a second of conversational turn-taking to a relation of fifty years. Dwelling supplies the housing, the neighbourhood, the climate and the seasons across which all this occurs. Multimateriality supplies the accumulating deposits of a shared household. Multisymbolization supplies the names, the law, the accounts and the record. Marriage is a commitment to coordinate across the full bandwidth of every mediation simultaneously, for the maximum duration any living being has available, entered into in a moment. It compresses the widest available coordination into the narrowest available act.
Two further features of this structure matter for what follows. The commitment has no revision cycle. Institutional commitments of comparable length ordinarily come with mechanisms for periodic reconsideration: leases renew, offices come up for reappointment, treaties are reviewed, contracts specify terms. Marriage as the Church defines it has none. There is no scheduled point at which the parties are asked whether the commitment still fits, and the absence is doctrine rather than oversight. Indissolubility is precisely the removal of the revision cycle.
The coordination it commits to is also the one whose future is least securable. A commitment to maintain a building concerns a material process with a describable rate. A commitment to hold an office concerns an institution that can release. A commitment to another person concerns a counterpart who will change partly in response to one's own changes, so that the thing being committed to does not yet exist and will be produced by the commitment itself among other things. The longest horizon, the widest bandwidth, the least securable subject matter, and no mechanism for revision: the question that follows is not how the ceremony itself is performed but how anything at all could prepare two people for a commitment of this shape. The claim developed in the rest of this article is that nothing can, and that the Church's practices make much better sense once this is granted.
IV. Preparation as Future-Production
An institution facing a commitment of this kind is engaged in future-production, and the standard difficulties of that undertaking apply with unusual force.
Compressing the past and compressing the future are different operations. A record constrains by existing; a commitment constrains only while it is enforced. Marriage is a commitment, and the Church's capacity to enforce it has changed enormously across the period in which the modern preparation apparatus developed. Where civil divorce is freely available and social sanction has largely dissolved, the enforcement behind the commitment has thinned to almost nothing, while the commitment continues to be issued in exactly its original form. The statement is made at full strength, the machinery for making it true has weakened, and nothing in the statement itself registers the change. The couple exchange the same consent, in the same words, with the same stated horizon, that couples exchanged when the surrounding coordination made departure nearly impossible.
Seen this way, the growth of preparation in the modern period reads as an attempt to replace lost enforcement with something else. If the commitment can no longer be held in place by sanction, it must be held in place by the quality of the consent that produced it. The three-stage model set out in the Church's own documents, running from formation in childhood through the engagement period to immediate preparation, describes a lengthening of the process by which consent is produced, and the lengthening tracks the shortening of everything else that used to hold marriages together. This is a recent development, appearing only as the surrounding social enforcement of marriage weakened, and its timing tracks that decline rather than any change in the wedding itself.
Preparation is also directed at the couple's mutual coordination rather than at doctrinal understanding, because what is being shored up is not comprehension of a sacrament but the durability of an interrecursive commitment. The things that make such commitments durable are ordinary ones: knowing how the other handles money, whether children are wanted, what happens when there is a disagreement, how each family will intrude.
V. Accommodation as a Rational Response
An institution whose sacrament requires assent from people it can neither compel nor screen out has reason to teach in a way that the people in front of it can actually assent to. Doctrinal positions that a given couple would reject, if pressed on them directly, threaten the consent the sacrament depends on rather than merely the couple's orthodoxy. Softening such positions, or giving them a practical rather than a theological justification, protects the sacrament rather than diluting it. Accommodation of this kind is not a reluctant concession to secular values but a rational response to a structural requirement: assent has to come from whoever presents themselves, on terms they can accept.
The same logic explains why course leaders are typically married lay couples rather than clergy. Their authority is not doctrinal, and is not offered as such. It is the authority of people who have sustained the coordination in question, offered to people about to attempt it, which is exactly the resource an institution would draw on if the underlying problem were the durability of an interrecursive commitment.
Cohabitation, formally irregular, can be treated the same way. From the standpoint of interrecursive durability it is information rather than a fault: a couple who have already lived together have tested a good deal of what the commitment will require, and a course concerned with durability has reason to treat that as evidence rather than as a deficit to be corrected.
VI. Why the Future Cannot Be Secured
Interrecursive futures are not discovered but produced within the coordination itself. Each participant responds to a counterpart who is changing partly in response to them, so that what will happen does not exist independently of an unfolding process in which each person's own conduct is among the causes. This is not a limitation on what can be known but a fact about what there is to know, and no quantity of preparation alters it.
What preparation can establish is present-state information: what each party currently thinks, wants, fears and expects. This is useful, but present-state information about two people has a severe limitation as a predictor of a coordination that will run for decades, because the coordination will produce people other than the ones who entered it, partly through itself. A couple assessed as compatible at thirty are being assessed on the state of two processes at one point. Both will change, some of the change will be in response to each other, and the changes will interact. What comes out of that is not derivable from the starting conditions, which is what distinguishes an interrecursive process from a complicated but tractable one.
Preparation is also itself a participant in what it prepares for. A couple who have spent weeks discussing money, children and conflict have thereby altered their relation, and altered it in ways nobody can score, since the discussions become part of the coordination they were assessing. Preparation cannot secure an interrecursive future, and it cannot be assessed against one either, because it has entered the coordination it was measuring.
That double limit is the pivot of this article. An institution that has committed two people to the longest available coordination, on terms it declares unbreakable, and that cannot secure the outcome prospectively by any means available to it, has to do something else. What it does is turn to the past.
VII. Compressing Consent into an Instrument
Before turning to the past, one intermediate device is worth noting, because it shows how far prospective compression can be taken.
Many dioceses employ premarital inventories: structured instruments in which each party responds separately to a large number of items about expectations, values, finances, family, communication and intimacy, with the results compared to identify areas of disagreement. The couple then discuss the discrepancies with a facilitator. This is recursive compression performed explicitly. An interrecursive relation, open, mutually productive and not fully knowable by either party, is converted into two sets of discrete responses that can be compared mechanically. Divergences that would otherwise emerge over years are surfaced in an afternoon, and the output is a profile that can be discussed, filed and acted upon.
The instrument works within its own limited terms. What it compresses is real, and the compression is not fraudulent, but it compresses present states, and the limitation set out above applies in full. Agreement now about children does not survive infertility. Agreement now about money does not survive unemployment. Agreement now about how to handle conflict is agreement about conflicts not yet had, between people who have not yet become whoever the marriage will make them.
The instrument's deeper function may lie elsewhere. It produces a record. Two people, separately, on a stated date, recorded their understanding of what they were undertaking, and discussed the discrepancies with a third party who can attest to it. Whatever the instrument predicts, it documents, and documentation of what each party understood at the time of consent is precisely what the Church's repair apparatus will later require.
VIII. The Turn to the Past
Catholic marriage is held to be indissoluble. A ratified and consummated sacramental marriage cannot be dissolved by any human authority. This is a doctrinal position rather than a strong presumption, and it forecloses the remedy that most institutions facing a failed long commitment reach for. The consequence is that when a marriage fails, the Church cannot end it. What it can do is examine whether it began.
A declaration of nullity finds that no valid marriage came into existence at the moment of consent. The parties may have lived together for thirty years and raised children, and none of that is denied or at issue. What is at issue is a state of affairs at a single past moment: whether both parties consented, whether they consented to what marriage is, whether either was capable of assuming its obligations, whether the consent was free, whether it was simulated, whether either party excluded something essential.
This is retrospective recursivity performed institutionally, and it is worth being precise about what it does and does not claim. It does not claim that the past changed. The wedding occurred, the years occurred, the children exist, and nothing in the finding disturbs any of that. What changes is the recursive placement of the past within an ongoing coordination. Events that had been understood one way are reorganised under a different account, not as a discovery of what they secretly were nor as a free construction. A holiday remembered as happy becomes evidence of something that was already wrong. A hesitation before the wedding, unremarkable at the time, becomes the fact on which everything turns. The tribunal's work consists largely in assembling such reorganisations from the testimony of the parties and of witnesses who knew them.
The Church cannot dissolve the bond, so it reopens the moment the bond was made. Its only remedy for a failed future is a redescription of the past. The grounds it examines are real and the process is serious: the finding that a person lacked the capacity to assume the obligations of marriage is frequently the most accurate available description of what happened. The point is structural rather than a judgement on any particular case. An institution that has forbidden itself prospective remedies must locate all its remedies in the past, and the past is available for this because interrecursive pasts remain open to reorganisation in a way that finished events do not.
IX. Repair in the Other Direction
The retrospective machinery runs both ways, which confirms that the direction rather than the outcome is what is structural.
Where a marriage is invalid for a remediable reason, the ordinary remedy is convalidation: the parties renew consent in the proper form, and the marriage becomes valid from that point. This is prospective repair and unremarkable. There is also a second remedy, sanation at the root, in which competent authority supplies validity retroactively without any renewal of consent. The marriage is treated as having been valid from the moment of the original exchange, and the parties may not even be aware that anything was wrong or that anything has been done. A defect that existed at a past moment is removed from that moment by an act performed now. The language is exact: healing at the root, which is to say at the origin rather than at the present.
Set the two mechanisms side by side. Nullity examines a past moment and finds that what appeared to happen did not. Sanation addresses a past moment and supplies what was missing from it. In both cases the Church's operative surface is the moment of consent, years or decades after it occurred, and in both cases the present coordination is altered by altering what the past is taken to have contained. Nullity says it never was; sanation says it was after all. Both work on the past because the future was never available to secure.
No other sacrament requires anything like this. A doubtfully valid baptism is repeated conditionally, which takes a few minutes and closes the question. A defect in ordination is remediable through the ordinary exercise of authority. Nothing in the treatment of the other sacraments involves standing tribunals, canonical procedure, testimony from witnesses, expert psychological assessment, appeals, and two distinct retroactive remedies pointing in opposite directions. The apparatus exists for marriage because marriage is the only sacrament whose subject matter is an interrecursive coordination running for decades, and interrecursive coordinations are the one thing an institution cannot secure in advance.
X. When Neither Remedy Is Available
The retrospective apparatus does not cover every case, and what happens at its edges is instructive, because it is where the Church encounters an interrecursive coordination that has simply continued past its categories. A marriage may have been validly contracted and may nonetheless have failed. This is not an anomaly on the Church's own terms: validity concerns the moment of consent, and nothing about valid consent guarantees that two people will remain able to live together. Where the marriage was valid, nullity is unavailable by definition, and sanation is irrelevant since there was no defect to heal. The bond stands, and the coordination does not.
Canonical provision for separation exists and is limited in a revealing way. It addresses cohabitation rather than the bond. Two people may cease to live together, with permission, while remaining married, so that the Church's remedy operates on the material and embodied mediations while leaving the relational commitment intact. The household may be dissolved and the coordination may not.
What follows, in a great many cases, is that people form new relationships anyway. Civil divorce and remarriage occur, and a population accumulates whose lived coordination and canonical status have come apart completely. That population has been the occasion of sustained institutional difficulty, most visibly in the long argument about access to communion for the divorced and civilly remarried, and about whether pastoral accompaniment can reach conclusions that canonical status forbids. An institution that has forbidden itself prospective remedies, and whose retrospective remedies apply only to defects at a past moment, has no category at all for a valid commitment whose coordination has ended. The people in that position have not done anything the apparatus recognises. They have simply continued to be recursively responsive beings whose coordination went one way rather than another, which is the one thing the Church knew from the beginning that it could not control. The hardest cases are not the invalid marriages but the valid ones that ended, because those are the cases in which nothing went wrong that any remedy addresses.
Alongside the canonical apparatus sit ongoing programmes for couples in difficulty, run largely by lay volunteers and making no determinations about validity. Their existence is significant. They are continuous rather than occasional, directed at the coordination rather than at the moment of consent, and they are the only part of the whole apparatus that works on the marriage as it actually runs. They are also, tellingly, the least institutionalised part. The tribunal has canon law, procedure, appeal and trained personnel. The remediation programmes have volunteers and a retreat format. An institution whose only formal remedies are retrospective will develop its prospective repair informally, at the margins, staffed by people who have no standing, because there is no institutional place for work on something the institution has declared already settled.
XI. Bandwidth Across the Apparatus
The whole arrangement can be laid out in temporal terms, and doing so makes the mismatches visible.
The ceremony runs in minutes. Preparation runs in weeks. The Church's own three-stage model extends preparation across a lifetime, but only the final stage has institutional reality, and it is the short one. The marriage runs in decades. The tribunal, when it comes, runs in years.
Every adjacent pair in that sequence is mismatched, and the mismatches are not incidental. Preparation and marriage are mismatched by orders of magnitude: weeks of assessment cannot characterise decades of coordination even in principle, and no amount of redesign would close that gap. Marriage and tribunal are mismatched at the other end. A marriage failing may fail quickly, over months, while the canonical process runs over years, and remarriage cannot occur until the process concludes. The Church's repair cycle is slower than the process it repairs, which is the ordinary condition of institutional repair and is particularly consequential here because the intervening period is a large fraction of the remaining life of people who are frequently no longer young. The ceremony and the commitment are mismatched most extremely of all: seconds of exchanged consent commit a lifetime, and nothing occupies the interval.
There is also a phase problem. Preparation arrives at a determinate point, shortly before a wedding whose date is already fixed, the venue booked and the families invited. Whatever preparation discovers arrives at the phase of the coordination least able to act on it. A couple who identify a serious incompatibility six weeks before a wedding are not in a position to use that information, and everybody involved knows it. Preparation is scheduled where the institution can schedule it, which is not where the information could do most work. This is the ordinary structure of institutional temporality rather than a failing peculiar to marriage preparation: institutions schedule intake where intake is possible.
XII. What Preparation Actually Produces
Bringing these strands together produces a direct account of what the course achieves.
Preparation spends almost no time on the ceremony itself, and does not reliably produce durable marriages, since it cannot be assessed against outcomes it has already entered. What it does produce, with considerable reliability, is documented, deliberated, mutually acknowledged consent. Two people are brought together, over a period, in the presence of representatives of the Church, and required to articulate to each other what they expect of a marriage. They discuss money, children, conflict, family and sex. They complete instruments recording their positions separately. They are told what the Church holds marriage to be, in terms they can assent to, and a record exists that all of this occurred.
That is precisely the object the repair apparatus will later need. When consent is examined, the question will be what these two people understood themselves to be undertaking, whether they were capable of undertaking it, and whether anything essential was excluded. Preparation of this kind produces evidence bearing directly on each question, whether or not anyone involved understands it that way. Course leaders are attempting to help couples, couples are attempting to get married, and the tribunal is a remote institution most participants will never encounter. The function is structural rather than intended, and does not require anyone to be aware of it.
None of this makes preparation cynical or empty. Preparing people to coordinate for decades is a serious undertaking, the material is well chosen for it, and the discussions it forces are ones many couples would not otherwise have. What it reliably produces is the consent that the retrospective apparatus will one day examine, and that is exactly what an institution needs when its only available remedy operates on the past.
XIII. Why Only Here
A final comparison sharpens the argument by showing what happens where its conditions do not hold.
Consider a sacrament that involves permanent commitment but not interrecursive coordination. Ordination commits a person for life and requires extensive preparation, considerably more than marriage, running over years of formation. But the commitment is to an institution and to a role, not to a responsive counterpart who is simultaneously committing to them. The seminarian's future is uncertain in the ways any life is uncertain. It is not jointly generated with another person whose responses to his responses will constitute it.
The repair apparatus is correspondingly different. Laicisation is an administrative process. It does not require a tribunal to determine whether ordination validly occurred years earlier, and it has no retroactive counterpart supplying validity backwards. The remedy is prospective because the commitment, though permanent, is to a party that can release.
Marriage cannot be released because the Church has defined the bond as beyond release, and the bond is between two people rather than to the institution. That combination generates everything distinctive about it: the preparation, the instruments, the tribunals, the two retroactive remedies, the ongoing programmes for couples in difficulty, the whole apparatus that no other sacrament requires. Marriage is the only sacrament in which the institution commits two recursively responsive beings to each other, for life, on terms it has forbidden itself to undo. Two responsive beings, so the coordination is interrecursive and its future is produced within it. For life, so the commitment is indexed to the longest horizon available. On terms the institution has forbidden itself to undo, so no prospective remedy exists. Any institution in that position would develop an elaborate apparatus of preparation and an even more elaborate apparatus of retrospective repair. The Catholic Church has done so, and its practices are intelligible as reasonable responses to a structurally impossible task.
XIV. Conclusion
What distinguishes marriage from the other sacraments is that it institutionalises interrecursivity. The others alter a person permanently and require nothing further, or repeat, or attend a death. Marriage creates a bond between two recursively responsive beings and requires that they coordinate across the full bandwidth of every mediation for as long as either lives, entered into in an act lasting seconds, on terms the institution has declared unbreakable, with the spouses themselves as ministers, so that validity turns on something interior and unobservable.
Nothing can secure that in advance. Interrecursive futures are jointly generated rather than awaited, preparation cannot characterise decades in weeks, and any assessment made becomes part of the coordination it assessed. Instruments compress present states well and predict little. Courses accommodate rather than instruct, and the accommodation is rational, since assent is what is needed and assent must come from the people who present themselves.
The Church's real response to that impossibility is retrospective. Nullity finds that a past moment did not contain what it appeared to contain. Sanation supplies retroactively what a past moment lacked. Both operate on the moment of consent, years later, because the past is where an institution forbidden prospective remedies must work, and because interrecursive pasts remain open to reorganisation in a way that finished events do not. Preparation is best understood not as instruction for the ceremony but as the production of the consent this apparatus will one day examine, and the fact that courses focus on communication, money, conflict and family rather than on liturgy is a direct expression of that function rather than a departure from it.
The sacrament cannot be secured. Everything the institution does around it, the preparation, the instruments, the tribunals, the two retroactive remedies, follows from that single fact.