Analysis (Annotation) of the fourth stanza

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 The speaker seems to accept that it is the sound of the wind he hears.

 "Faltering forward" suggests he cannot move on from the memory of his wife.

 "leaves around me falling" reflects the speakers loneliness and perhaps his wife "falling" around him.

 The "wind" and "thorn" give us the idea that his memories cause his pain.

 The rhythm completely breaks down at the beginning of the stanza

 "oozing" suggest something uncomfortable or repulsive

 The final line "and the woman calling" suggests that the speakers guilt and memory will forever torment him.