Taking Xuanzang's career experience as the main line after he returned from studying Buddhist scriptures, it connects the core conflicts of "the spread of Buddhism and the court game", "the persistence of ideals and the compromise of reality" and "the personal ambition and the righteousness of the family and the country". It shows the struggle, growth and persistence of an eminent monk in the power center of the feudal dynasty, and depicts the political ecology and religious pattern of the Tang Dynasty from Zhenguan to Yonghui.