The title comes from the waka poem composed by the Akashi Nun in the chapter, 'When I came back to a village in the mountain after taking the veil, a wind was blowing in the pines that was familiar to what I had heard in the old days.'
巻名は作中で明石の尼君が詠んだ和歌「身を変へて一人帰れる山里に聞きしに似たる松風ぞ吹く」に因む。