"Signature" is a poem where the speaker never gives an actual name. Instead, each stanza begins "My name is..." and finishes the thought with a feeling, an image, or a memory: peeling paint, silence, hunger, hail, tiredness, wild excitement. The speaker seems to be saying that identity is not a label but a shifting collection of states, many of them shaped by the past.
The mood is weary and uneasy, with flashes of relief. Images of a musty ceiling, a "rotten hold," and a confining "he" suggest a difficult, controlling past, though the poem never spells out what happened. Later stanzas hint at release ("free, after all that time") and a "fresher start," but doubt keeps creeping back: "who would know my name today?" The ending is bittersweet. The speaker is happy, making friends, and hoping it lasts, yet knows that it has to end. The repeated rhymes in each three-line stanza give the poem a steady, chant-like rhythm, as if the speaker is signing the same page again and again.