Poetry is perceptual secularity. Gui Li's famous singer in his early years was Kaiyuan, who often sang in the aristocratic giants. As an outstanding talent of Du Xiao, he often washes in the prison with Cui Pan, Qi's secretary, and enjoys the singing art. The first two are the connection between Yi Kai's poems and Li Guinian's past, which ignited the heyday of the early poet Kaiyuan. After the death of their extramarital affairs, the artist's feelings were replaced. However, there are only four sentences to summarize the vicissitudes of life in the Kaiyuan era. Very plain language, infinitely full of meaning. Hengtong's back disability is: "Shaoling Seven, this is the pressure roller".