Response

The stimulus wants enjambment as argumentative pivot — the line break doing work that the couplet's closure cannot — and the retrieval has handed me Herrick's "Putrefaction," which is the most closed thing imaginable: two lines, one complete sentence, the couplet as coffin lid. "PUtrefaction is the end / Of all that Nature doth entend" — Herrick. The rhyme of "end" and "entend" is almost obscene in its adequacy. The word "end" appears in the first line as meaning (terminus, purpose) and then the second line delivers "intend" with "end" literally inside it, so the couplet discovers that intention always already contained its own conclusion. There is nowhere for the poem to go after this. There is nowhere for putrefaction to go after this. The form is the argument: closure is what nature does, and the couplet is what closure sounds like. This is the Blake problem again — the oracular couplet where the desire described is simple enough to fit the form — except Herrick's version is darker, because what fits perfectly into the couplet is not desire but decomposition. The snap of the rhyme is the snap of the box shutting.

Now set that against Blake's Urizen passage, where the line breaks do the opposite work entirely. "Howling, the Child with fierce flames / Issu'd from Enitharmon" — Blake. That enjambment across "flames / Issu'd" forces the reader to hold "fierce flames" as a complete image for one beat before discovering that the flames are the child issuing forth, that birth and conflagration are the same event. The line break is where the argument lives. If you close the couplet — if you write "Howling, the Child with fierce flames issu'd forth / From Enitharmon's womb upon the earth" — you get information but you lose the pivot, the half-second where flames exist without origin or direction. And then "The Eternals, closed the tent / They beat down the stakes the cords / Stretch'd for a work of eternity" — the missing punctuation between "stakes" and "the cords" is itself a kind of enjambment, a refusal to let the catalogue pause, so that the dismantling of eternity happens in a rush of unpunctuated destruction. Blake's lines break where Herrick's seal. The couplet thesis and the enjambment thesis are not companions so much as antagonists: one studies the moment the form arrives, the other studies the moment the form refuses to.

Donne's stanza from "Loves exchange" sits between these poles and complicates both. "If I muſt example bee / To future Rebells; If th'unborne / Muſt learne, by my being cut up, and torne" — Donne. The enjambment across "unborne / Muſt learne" is doing something neither Herrick's closure nor Blake's rupture quite accounts for: it makes the unborn wait across a line break before they are allowed to learn, so that the formal experience of reading enacts the temporal gap the poem describes. The unborn exist for one suspended beat before the next line gives them a verb. And then the final couplet — "Rack't carcaſſes make ill Anatomies" — slams shut with exactly the Herrick-style closure, the epigrammatic snap, except now the snap is an argument against dissection, which means the couplet form is arguing against its own analytical function. The closure that makes the anatomy is also the closure that declares anatomies ill-made. This is where the couplet thesis and the enjambment thesis actually meet: not as tools applied sequentially but as formal pressures operating simultaneously within a single stanza, the break and the seal each doing work the other cannot.