Fifteen words, three lines, and a whole morning gets used up in them. Dave Bonta's "Brain Food" gives us a mind working, a death seen on the water, and a person who responds by eating far too many nuts. It never says how these things connect. The central idea seems to be that thought has limits, and when it runs out of road the body takes over. After a morning of abstraction, the speaker meets something undeniably physical, a dead animal, and answers it with the most physical act available: stuffing himself.
The grammar holds this together and also keeps it apart. The first line, "All morning thinking," has no subject and no main verb. It is a participle hanging in the air, so the thinking seems to happen without anyone in particular doing it. The second line, "On the water, the corpse of a swan," has no verb either. It is a snapshot, a thing placed in front of us with no comment. The first-person pronoun doesn't turn up until the last line, and when it does it arrives with a verb at last: "I eat 200 walnuts." The poem moves from a vague mental process, to an image, to a person who acts. The self only appears when it is hungry.
The word "corpse" matters. "Carcass" or "body" would have been softer, but "corpse" is the word we normally keep for people, and it gives the swan a strange dignity. We also tend to associate swans with grace and whiteness, so seeing one dead and drifting makes the line quietly shocking. Water, the swan's natural home, is now only what holds it up. The poem doesn't say whether the speaker was thinking about death before he saw the swan, or whether the swan interrupted some other thought. That gap between lines one and two is the poem's real subject. Judging by the title, the thinking and the corpse both lead to the same place: a need for fuel.
Then comes the third line, and with it a joke. The title, "Brain Food," plays on the familiar idea that certain foods feed the mind. A walnut also looks a little like a brain, wrinkled and divided into halves, so the speaker seems to be eating the thing he has been using all morning. The numeral "200" is flat and a little ridiculous. Digits look like a record or a recipe, not a poem, and the number is absurdly large. Cracking that many shells would take time and effort, so the act reads almost like a compulsion, perhaps a way of keeping the hands busy while the mind stops. That is an inference, but the deadpan tone invites it. The poem never tells us whether the speaker is comforted, numb, or amused at himself. It is funny and sad at once, and it won't pick one.
The sound is plain, but not accidental. There is no rhyme. The lines have roughly five, nine, and seven syllables, so the poem resembles a haiku in its brevity and its juxtaposed images without following the 5-7-5 pattern. The middle line is the longest and slowest, with a comma in the middle that makes us pause, as if we were looking at the water. The first line is short and ends on the repeated "-ing" sounds of "morning thinking," which sound like something going round and round. In the last two lines a soft "w" runs through "water," "swan," and "walnuts," a quiet link between the dead bird and the food that sounds more deliberate than it looks.
What makes the poem worth reading is how much it trusts us. It leaves out the explanation that would turn it into a statement, and the reader has to do the joining: thought, death, appetite. Some readers will find the ending darkly comic, others will find it a little desperate, and the text supports both. In a few lines it suggests how a mind can run out of answers and settle for something it can hold in its hand and crack open.