The speaker talks to a wooden table, the one object that has been close to her through many sleepless, miserable nights. She remembers resting her head on it and gripping it as if it were a lover's chest or his broad shoulders. The comparison suggests she longs for a human comfort she doesn't have, and the table has to stand in for it. She cries against it, pressing herself to it, but it stays hard and silent. It cannot answer her.
The last stanza changes the tone. She says she is leaving and that this note is her last. Read plainly, it hints that she may be saying goodbye to more than the table, though the poem never says so outright. Her final worry is small and heartbreaking: she hopes the wind won't blow the note away. The mood is quiet, lonely and sorrowful, and the plain address to the furniture makes her isolation feel very real.