"Dissolute" is a word with a bad reputation. It describes someone loose in their habits, a drinker or a wastrel, a person who has let go of restraint. Dave Bonta's poem takes that word as its title and then gives us almost none of the behavior it promises. There is a highway, a bridge, a few small creatures and a single act of drinking, and what gets drunk is light. The gap between the title and the scene is where the poem does its thinking.
The opening stanza is a small puzzle in grammar. "on the highway / through town drinking / the light in" has no subject, so we don't know who or what is doing the drinking. It could be the speaker, or the highway itself, soaking up daylight as it cuts through town. The stanza break then adds a second meaning. Read straight on, "drinking the light in" means taking light in. But the line break lets "in" slide forward, so that we also get "the light in a bridge with many arches." The light is both swallowed and located. One small word works as an adverb and a preposition at once, and the stanza break makes us hold both readings.
The bridge then becomes the poem's central image: "like a cathedral." The simile is brief and unexplained, but it does a lot. "Many arches" suggest a row of vaulted openings, with light falling through them as it would down a nave. An ordinary piece of road engineering, easily the least beautiful thing in a town, is given the dignity of a holy building. The highway of the first line is about passing through. The bridge asks us to stop and look up, and then to step inside.
The speaker does so in the final stanza, and the poem's only capital letter marks the moment: "and I go under." The poem has no punctuation at all, so that capital "I" stands out, arriving late and quietly. "Go under" is also deliberately double-edged. It means passing beneath the arches, but in everyday speech it can also mean sinking, failing or drowning. The speaker is entering the shelter and surrendering a little at the same time.
Whom the speaker goes under with is the poem's real surprise: "sparrow and water / and the poor." The first two nouns come without articles, as bare, general presences. The repeated "and" lays all three items on one level, the bird, the element and the people. Nothing is ranked, and "the poor" are simply one more part of the place. Judging by the imagery, these are the things that gather under bridges: birds finding a ledge, water running below, people without much shelter. A reader might also recall the Gospel's sparrows and its poor, and hear a faint religious echo that suits the cathedral. The poem never states this, though, and the suggestion rests on the images alone.
The poem's construction is plain and tightly controlled. There is no rhyme and no regular meter, only short lines of three to six syllables in a pattern of three lines, then two, then three. Both outer stanzas end on a three-syllable line, "the light in" and "and the poor." The first trails off on a preposition and leaves the thought open. The second lands on a noun with the weight of a final word. The middle stanza, with the poem's longest line, "a bridge with many arches," is the most spacious. The form itself seems to open and then close, like a person stepping into a large room and then lowering their voice.
What makes the poem worth studying is the way it quietly rewrites its title. "Dissolute" comes from a Latin root meaning "loosened," and the word also sits close to "dissolve." In the last stanza the speaker's edges do loosen. The "I" goes under and is listed alongside sparrow, water and the poor, becoming one of the company rather than an observer. The drinking in the first stanza is a thirst for light, not a vice. For a student, the poem shows how much small words like "in," "under," "with" and "and" can carry, and how a few lines can turn a roadside bridge into a place of shared belonging.