The speaker of this poem lists a series of heroic hardships: a winter in a cave, a vow of silence, thousands of memorized scriptures, months of near-starvation. Then, in two quiet lines, he admits he should have spent that time ladling soup for strangers. The central idea is a pointed one. Self-denial pursued for the sake of one's own improvement can be a kind of vanity, and ordinary usefulness to other people may be worth more than any dramatic retreat from the world.
The poem's construction leans on restraint. It has no rhyme, no regular meter and, notably, no punctuation at all. Most lines begin with a bare verb and drop the "I": "Took a vow of silence," "Memorized," "Quit eating," "Swore off," "Fasted." The effect is a résumé of achievements, each line a bullet point. The stanzas also shrink as the poem goes on, from four lines to six, then to a single line, then to two. The longest stanza is the one about fasting, and after it the poem seems to run out of food itself.
Numbers do much of the work. The speaker gives us "2019," "10,000," "six months," "ten sunflower seeds," and a handful of water "per day." This precision makes spiritual discipline sound like bookkeeping, as if he were keeping score. The figure of 10,000 sutras is so huge that it tips into comedy, and it makes the memorizing sound like a trophy count. The imagery is sparse but pointed. The speaker never wanders "into the daylight," yet his only meal is sunflower seeds, the fruit of a plant famous for turning toward the sun. The "cupped handful of water" is the poem's one tender, physical gesture. Reading it as an image, a hand held out to receive anticipates the soup kitchen, where hands give instead.
The turn comes with "Until I almost died." The word "almost" deflates the drama, and the line is delivered flatly, with no exclamation. Then comes the single-line stanza "For all the good it did," the bluntest moment in the poem. It is a colloquial shrug, the sort of thing someone says about a failed diet or a wasted afternoon. After all that talk of vows and sutras, the voice drops its lofty register and speaks like a person at last. The poem has also been breaking a kind of silence, since the man who vowed not to speak now confesses plainly.
The closing couplet answers the cave point by point. "Volunteered to work" replaces "took a vow," and effort for others replaces private purity. "Local" and "soup kitchen" are deliberately small, ordinary words. A cave removes a person from daylight and from other people, while a soup kitchen is made of both: warmth, noise, hunger met by food. The phrase "should have" carries a mild regret, as though the speaker had missed a bus rather than nearly thrown away his life. That understatement is funny, and it is also what makes the ending sting.
The title is the most puzzling part, and it is worth a second look. Butter and bread are the pair of everyday foods that the speaker's diet bans, though the poem never names them. Through "carbohydrates" and "dairy" he has given up both. The title also sounds like a domestic complaint about a badly made sandwich, which sets a trivial kitchen problem beside the epic austerity of the poem itself. The poem suggests a theme of proportion. The speaker lived by extremes, with too much of one thing and not enough of another, and never found the balance that a shared meal represents.
What makes the poem worth reading is how much it does in so few lines. It does not mock the wish to find meaning, and it does not tell us what the speaker was searching for. It lets deadpan humor build until a moral surfaces almost by accident, and it trusts the reader to see that the most important act in the poem is the one that never happens.