In classical Chinese poetry,
砧声 (zhēnshēng, the rhythmic sound of women beating laundry on a stone block) is a stock autumn image evoking longing — wives pounding cloth to make winter clothes for soldier husbands far away. See Li Bai's 《
子夜吴歌》 (Wu Songs of Midnight): '
长安一片月,
万户捣衣声.'