Told from the point of view of a red-framed window, the poem walks through a full year. Autumn brings coloured leaves in vermillion and chrome, winter brings a full moon and snow settling on the roof and pane, spring brings cherry blossoms, chrysanthemums and lilies along the lane, and the rains bring paper boats and a crowd of bright umbrellas. Each season gets its own small picture, mostly of colour and quiet movement.
The speaker seems to feel a gentle fondness for these scenes, but the ending changes the tone. The window is left "laying there / shut," still watching while seasons go by. Judging by that closing image, the poem hints at stillness or even loneliness: life happens outside, and the window can only look on. The mood is calm and nostalgic, with a faint sadness underneath, as if the poet is noticing how much beauty passes by a place that nobody opens.