Nobody boards a train hoping to be interrupted by poetry, and Dave Bonta's title seems to know it. "Poem for Display in a Subway Car" imagines the text posted among the other things a commuter's eyes slide over, and the poem's first move is to describe that sliding. The reader is "you": swaying, tired, staring, plugged into some private stream of sound. Only in the last three lines does the poem lift something out from beneath all that: "it is still there, running just / under everything, / that third rail."
The central idea is that distraction doesn't remove what lies under ordinary life, it only covers it. The third rail is the electrified rail that powers a train, and touching it can kill. Bonta never says what it stands for, and the poem is stronger for the silence. Judging by the imagery, it could be death, or the sheer fact of being alive, or the huge impersonal energy of the city that carries everyone along. The image works because it holds two things at once. What moves you is also what you must not touch.
The construction is a piece of patient withholding. The whole poem is a single sentence, and its grammar keeps the reader waiting. It opens with "While," a clause that hangs unresolved through two long lines. The subject, "it," doesn't arrive until line three, and we don't learn what "it" is until the final phrase. The poem delays its answer the way the commuter delays attention, and then the answer hits. The line lengths follow the same logic. The first two lines run to thirteen or fourteen syllables, loose and trailing. Then the poem shrinks: seven syllables, then five or six, then three in "that third rail." The flow narrows to a point, and the final word is hard and blunt.
There is no rhyme and no regular meter. The rhythm comes from sound and from where the lines break. "Sway, tired, staring" is three beats separated by commas, and the commas slow the line, so it seems to lurch the way a standing passenger does. The consonants in "electronic earplugs" and "delivering their intravenous drip of distraction" click and tap, and the repeated *d* in "delivering," "drip" and "distraction" gives the line a small, mechanical pulse. Then the sounds relax into the plain, monosyllabic "it is still there." The break after "running just" matters too. "Just" can mean "merely" or "exactly," and leaving it at the line's end lets it pull the eye down toward "under."
The imagery sets two kinds of current against each other. The earplugs deliver an "intravenous drip," a medical picture that makes the listener a passive patient, quietly sedated. A drip is also a measured, tiny dose, and it is manufactured. Against it stands the rail, which is "running," a word for continuous, unmetered flow. Even the vocabulary lines up. "Electronic" belongs to the small gadget, while the electricity of the third rail is the real, lethal version. Bonta lets the two words sit in the same poem without comment. "Still" works two ways as well. It means "even now," but it also means motionless, a quiet contrast with the swaying, rushing train.
The poem is significant for how much it manages in five lines. It doesn't scold, and it never says "you should look up." It simply states a fact and leaves it humming. Its setting adds a small irony. Anyone reading it on a train has, for a few seconds, taken their attention back from the drip, so the poem does what it describes people failing to do. It also fits its place, short enough to read between stations, and it leaves behind an image that is hard to shake while the doors open and close.