Gao Lishi entered the palace since he was a child, and he developed the ability to read and read, which is one of the reasons why he was valued not only by Emperor Xuanzong of the Tang Dynasty, but also by Wu Zetian.
Of course, Gao Lishi is popular not only because he is good at reading minds. He was loyal to Li Longji, Emperor Xuanzong of the Tang Dynasty. When Li Longji ascended the throne for the first time, he had not yet gained a foothold. It was Gao Lishi who helped him get rid of many threats, and Gao Lishi gained the trust of Li Longji.
Although Gao Lishi was in power and tried to curry favor with him from top to bottom, he never thought that he was in charge of state affairs. After seeing all the affairs in person, he still handed them over to the emperor, and the power of North Korea still belongs to Li Longji.
And Gao Lishi is also very good at dealing with his relationship with courtiers, especially in the dispute between the prince and the son of heaven. Although he is more inclined to the prince's side and thinks that the prince is the future of Datang, he has never done anything out of line and always puts the emperor first.
Gao Lishi devoted his whole life to Emperor Xuanzong of Tang Dynasty, and never had second thoughts. Tang Xuanzong died shortly after his death. I think he can finally be buried with Tang Xuanzong, and his life will be complete.
To sum up, Gao Lishi was loyal to Tang Xuanzong all his life, which made him have today's position. So I think that even if Xuanzong gave him more power, he deserved it.