A speaker wakes to morning light and suddenly notices what it reveals: tiny particles floating in the air, so fine and soft they look like fur. The poem is a small moment of discovery. Something ordinary, the air in a room, turns out to be full of life and movement that the speaker never saw before.
The strangest line is the one comparing it all to a war. The specks seem to churn with "heat and passion," as if each one were caught up in its own fierce struggle. Yet the things themselves are "little" and "light," so there is a gentle contrast between the huge language and the tiny scale. The speaker admits to being "ignorant till then," which gives the poem a humble, wondering tone. Nothing is judged or explained. The mood is quiet and curious, like someone leaning in close to something they had always looked straight past, and realizing how much the world holds beyond what the eye usually catches.