Death opens this sonnet like a closed account. The beloved "hath paid her last debt / To Nature", and the speaker uses the language of bookkeeping, as if dying were the settling of a bill we all owe. It is a strangely cool way to begin a poem about loss, and it sets up the question the sonnet goes on to test: can grief be turned into something useful? The first four lines answer with confidence. She has been "ravished" into heaven, a word that means both "carried off" and "enraptured", and so, he says, "Wholly on heavenly things my mind is set." Those four lines form a single sentence. The "Since..." clause is held up until the main statement arrives in line 4, which gives the speaker's reasoning a tidy, logical shape. Even the stress falls hard on "Wholly", which reverses the expected rhythm and lands like a door closing.
The poem never names the woman, though readers have traditionally linked it with Donne's wife. What the text itself tells us is that the speaker is bereaved and that his love for her has become tangled up with his love for God. Her goodness "whet" his mind, sharpened it like a blade, "To seek thee, God; so streams do show the head." Follow a stream upstream and you find its source. She was the stream, and God is the spring.
The octave's last two lines undo that calm. Though he has found God and been "fed", "a holy thirsty dropsy melts me yet." Dropsy was an illness in which the body swells with fluid yet the sufferer burns with thirst, and drinking only makes it worse. Donne turns this into a paradox of faith, where desire for God grows the more it is satisfied. "Holy" sits oddly beside a diseased body that "melts", a startling image of dissolving. The "Wholly" of line 4 is quietly contradicted by line 8, since a mind fixed on heaven is not the same as a mind at peace.
The sestet begins with a self-rebuke: "But why should I beg more love". God already "dost woo my soul, for hers offering all thine." The commercial language of the opening returns, but now God is the suitor, making an extravagant exchange of everything he has for her. The widower is the one being courted. Even stranger is the kind of jealousy the poem attributes to God. He fears not only sin but goodness, that the speaker might give his love "to saints and angels, things divine." The irony is hard to miss, because the woman he mourns is presumably among those heavenly beings now.
The final couplet widens the fear to the traditional enemies of the soul, "the world, flesh, yea, devil". That "yea" makes the list sound as if it is getting worse as it goes. The poem ends on the blunt phrase "put thee out", as though God were a lover being evicted from his own house. It does not end in consolation. It ends with the worry that the speaker might lose God.
The form helps this movement. The octave rhymes abba abba, in the Italian pattern, and states the problem. The sestet rhymes cdcd ee, and its closing couplet gives the English sonnet's epigrammatic snap, so that the answer arrives as a sharp, almost anxious click. The iambic pentameter is regular enough to sound argued, yet it is repeatedly roughened by stressed openings and heavy monosyllables, so that the voice never sounds fully composed.
The poem matters because it borrows the vocabulary of love poetry, with its wooing, jealousy and rivalry, and uses it for devotion. Grief becomes theology, but not smoothly. God and the dead woman compete for the speaker's heart, and God, rather than a remote judge, appears as an anxious lover. Whether that jealousy is comforting or unsettling is left for the reader to decide, and that unresolved tension is why the poem still feels alive.