Dave Bonta's three-line poem catches a small, easily missed moment: early morning, a little after sunrise, and the shiny trails that slugs have left along the edge of a highway. The title, "On the road," suggests the speaker is travelling, perhaps walking or stopping at the roadside, and has slowed down enough to notice something tiny.
The poem never says what the speaker feels, but the choice of detail tells us. The word "glisten" makes the slime look almost beautiful, like something lit up by the low morning sun. There's a quiet sense of attention and delight here, a willingness to find beauty in something most people would ignore or find unpleasant.
The mood is still and fresh. The highway usually means speed and noise, while slugs mean slowness, and the poem sets them side by side. The trails are evidence that life has moved through the night, unseen, and the morning light briefly reveals it.