What does autumn wind mean by sweeping leaves?

Autumn wind sweeps leaves: Autumn wind blows leaves on the ground. This is an anthropomorphic technique.

Xiao Suo refers to a bleak and depressing scene. The ancients often said "sad autumn", because bleak scenes such as autumn wind and fallen leaves are easy to cause people's sadness.

Judging from the season of this sentence: in the corresponding relationship between the zodiac and the twenty-four solar terms, August is the chicken-the Millennium and the autumnal equinox; September (dog)-cold dew and first frost, chicken and dog can correspond to autumn.

Judging from the source of this sentence, this is a translation of Bai Juyi's Song of Eternal Sorrow. The animals related to Yang Guifei may be sheep or pigs.