Alone in bed with a fan blowing on their skin, the speaker slips into memory. The details they recall are small and physical: a lover's breath, a racing heartbeat, the softness of a blanket the two of them shared. The title, "Saudade," fits well. It names a Portuguese word for a tender, aching longing for something absent, and that is the feeling running through these lines.
The second stanza turns sharply. The blanket, once soft and warm, is now a thread dragging along the ground, muddy and frayed. It seems to stand for the relationship itself, worn down and left behind. The speaker then moves "through the wind / into the freezing river," which suggests either a painful plunge into the cold reality of loss or an attempt to move on. The mood shifts from quiet intimacy to numbness and chill. The poem never says what happened, and that gap makes the sadness feel raw and unresolved.