Five short lines, one sentence, and a long stretch of human history folded inside it. Dave Bonta's "Deep time" takes its title from geology, where the phrase means spans so vast that ordinary calendars stop making sense. Instead of explaining that idea, the poem gives us a single morning that will not end, and a group of people who stop caring that it hasn't.
The opening image, "Morning of green water," treats the morning as if it were made of water rather than merely lit by it. Green suggests a pond, river or sea in early light, and it is tempting to hear something older behind it, the murky, living green of a world before people. Then comes "agate knife." Agate is a banded stone, and its stripes are layers laid down slowly, so the blade carries deep time in its very body. A stone knife also belongs to a human past before metal, which pulls the scene backward. The two images pair softness with hardness, a flowing surface with an edge.
The dashes then cut into the sentence: "—the first barber—." The poem never says exactly what this phrase renames. It might be the knife, or the whole morning, and the grammar lets both readings stand. Either way, the phrase is startling. "Barber" is a cheerful, modern, shop-on-the-corner word, and placing it beside a stone blade collapses the distance between then and now. Someone had to be the first to hold a sharp edge near another person's head, and the other had to sit still and trust them. The poem asks us to imagine that old intimacy, and it turns the dawn of tools into a small domestic scene.
The syntax enacts the poem's meaning. The subject, "morning," waits through three lines before its verb arrives. When it does, the verb is "stayed," a word for a guest who lingers, so the morning behaves like a visitor who won't leave. That delay is the lingering. The sentence takes its time, and we spend the time with it.
The poem has no rhyme and no regular meter, but it is carefully measured. Counting syllables, the lines run six, four, four, six, four. The longer lines hold the morning and the staying. The short ones hold the blade, the barber and the release. The sound work is quieter but real. Long vowels slow the reading down ("green," "stayed," "long," "go"), while the hard consonants of "agate knife" give the water something to cut against. The only full stop arrives at the very end, after "go," so that everything before it feels suspended.
The ending turns on a line break: "we let / tomorrow go." Stopping after "let" leaves the phrase briefly unfinished, and then the release comes. The pronoun "we" matters too. It makes the experience shared and draws the reader in. And "let" implies choice. Nobody loses tomorrow by accident, and it is allowed to slip away. Given the barber just before it, the phrase has another echo. Cutting is a kind of letting go, and tomorrow falls away like something trimmed and left behind.
The central idea is that absorbed attention to something ancient loosens the pull of the future. In deep time, the appointments and deadlines of the next day shrink to almost nothing. The poem presents this as a gift rather than a loss, a morning so full that nothing needs to follow it.
What makes the poem worth reading is how much it does in so little space. It takes an idea that usually arrives with charts and enormous numbers and gives it a human scale: a morning, a blade, a shared decision. It also does to the reader what it describes. Its brevity makes you reread, and each rereading stretches the moment a little, until you may find, as the speakers do, that you are in no hurry to move on.