In a drear-nighted December, Keats looks at a frozen tree and a brook. They don’t mourn their lost green leaves or summer sparkle. The tree is “too happy” because its branches simply forget past warmth; the brook’s bubbling stays clear, untroubled by memory. The first two stanzas paint a picture of sweet, painless forgetting — nature’s gift.
Then the mood shifts. The speaker sighs, wishing a gentle girl or boy could forget a past joy so easily. But for us, the ache of remembering and knowing what’s gone is unavoidable. No one can heal that feeling, and no dullness of sense can steal it. The poem ends on a quiet, resigned note: that kind of pain has never truly been captured in rhyme. It’s a tender, melancholy lament about how memory makes us human — and how much that can hurt.