in the first year of Tianbao (742), Li Bai was called to Beijing to worship the Hanlin because of the recommendation of Princess Yuzhen and others, and received special courtesy from Emperor Xuanzong of the Tang Dynasty. It is worth noting that Taoist Wu Yun and poet He Zhizhang can all be regarded as references for worship, but it is estimated that Princess Yuzhen, the sister of the emperor, is the decisive factor.