Five short lines, no capitals, no punctuation, and an entire evening has changed hands. Dave Bonta's "Nightfall" gives us a walker in the desert and then, almost at once, steps aside to let the dark take over. Its central idea is that dusk is not only a change in the sky but a change in the self: as night gains a shape, the person loses one.
The first stanza is bare. "walking in the desert / I turn thin." The desert is the right setting for a poem about subtraction, because it offers no trees, walls or crowds to soften the encounter between a small body and a large sky. "Thin" is the poem's most open word. The speaker may be thinning in the literal sense of a long, stretched shadow at the end of the day, or growing gaunt and light-headed from the walk. Or the self may simply be wearing away, pared down by emptiness and distance. The poem doesn't choose, and its refusal to choose is part of its strength. The verb helps too. "Turn" suggests a transformation, and it quietly echoes the turning of the day into evening. The line is also made of three stressed monosyllables, "I turn thin," so it moves slowly and narrowly, like the thing it describes.
Then the grammar shifts. The "I" disappears and "night" becomes the subject: "night comes as a horse / as a cross / as the day's black dress." The speaker thins, and the darkness fills in the space. Notice, too, how the poem repeats "as." It can mean "like," but it can also mean "in the form of," and the second reading is stranger and better. Night doesn't resemble a horse; it arrives wearing the horse's shape, then the cross's, then the dress's.
The three images are not interchangeable. The horse is alive, fast and a little threatening, so night comes as something that gallops in across open ground. (The poem never says the horse is dark, but the colour is easy to supply from the dress that follows.) The cross is a different kind of image: still, upright, symbolic. In a desert it can suggest a grave marker, a burden carried, or simply the shape of a figure with a horizon behind it. Whichever meaning we reach for, the poem has moved from animal to emblem. The last image moves again, to something domestic and human. A dress is worn, and "the day's black dress" implies that night is not an invader at all but the day's own clothing, put on at the end. The colour tips this toward mourning. The day is in black, and we are left to wonder who or what it is grieving. The speaker's thinning may be part of the answer.
The sound of the poem reinforces this progression. There is no rhyme, but the endings of the last three lines, "horse," "cross," "dress," all close on a hissing *s*, so the stanza seems to exhale. "Dress" lands on two heavy beats in "black dress," which is the poem's firmest full stop even though no punctuation is there. The lack of a final full stop is itself telling. Night, unlike a sentence, doesn't conclude, and the poem simply stops mid-fall, as the title promises. The repeated *d* sounds in "desert," "day's" and "dress" also tie the opening landscape to the closing garment, a small echo that makes the poem feel more stitched together than its few words would suggest.
What makes "Nightfall" worth reading is how much it asks of the reader with how little it says. A daily, ordinary event becomes elemental, almost ritual, through three quick transformations, and no explanation is offered for any of them. We are left to decide what the horse means, what the cross means, and why the day should be in mourning. The poem trusts a small, strange image to do the work of a paragraph, and in doing so it catches something true about twilight: the moment when the world is changing shape and we, walking through it, feel ourselves changing with it.