The poem is built from small, quiet glimpses of a winter night, and then it ends on something much bigger. The opening describes snow as "the white kiss of winter," which makes the cold feel gentle, almost intimate, rather than harsh. Then the camera pulls back to a sparse scene: an owl heard in "two or three places" and "two or three idle people." Everything is thin and scattered, as if the world has gone still and a little lonely.
The last lines turn toward a "you," and the speaker's feeling comes into focus. This person is "bigger than fear" and is compared to "a bonfire in the street." A bonfire is warm, bright, and public, something people gather around. The image suggests that this person pushes back the dark and the cold, and perhaps the speaker's own anxiety too. The mood moves from hushed and wintry to glowing and comforted, with love or deep affection quietly at the center.