At night, Bailuyuan was quiet, and there was no trace of autumn grass all over the mountain. "The white deer original nocturne mentioned in this poem comes from where?

At night, Bailuyuan was quiet, and there was no trace of autumn grass all over the mountain. From Su Shi's Red Cliff Nostalgia in Song Dynasty. According to relevant public information, this poem is called "Red Cliff Nostalgia" and was written by Du Mu, a poet in the Tang Dynasty. The night call of white deer comes from an old legend. White deer is a legendary fairy's mount and can sing at night. This poem describes the author's lamentation about historical vicissitudes and personnel changes when he swims in Chibi, while the night cry of white deer symbolizes the existence of ancient myths and legends.