What do you mean by Yun Qi Longsha?

Longsha: It refers to Bailongdui Desert, which is located in Tianshan South Road, Xinjiang. Yanmen: refers to Yanmen Mountain, which is said to be in the northwest of Daixian County, Shanxi Province, near Nanjing, Jiangsu Province. Yun Qi, Longsha Dark, Wild Goose Gate Tree. Autumn describes the sky as overcast and the desert looks dark. When autumn comes, the trees in Yanmen Mountain almost lose all their leaves. However, the original text I found was: Send Misha Dazhi to Wutai (Tang Jiaoran) to accompany him in his childhood, and his family background is Confucian. Learn from each other and enjoy the coolness of traveling thousands of miles. Clouds return to Longtan dark, wood falls to geese. The elders should ask each other and pass them on to Xiangzuzhou.