The wine flowed down the river into the reflection of the moon in the lake. From "Mid-Autumn Festival and Fruit Drink of Various Scholars": Wine enters the bottom of the Milky Way, and the flute blows the wind in the treetops of Yugui. It means the reflection of the moon when the wine enters the lake along the river. Mid-Autumn Festival and Fruit Drink of Various Scholars was written by Yang Wanli in Song Dynasty. Yang Wanli, the word court show, is called Chengzhai. Jiang You of Han nationality is a native of Jishui, Jizhou. Minister of Southern Song Dynasty, famous writer and patriotic poet.