Why is Tian Wen a wonderful work in Chu Ci?

Tian Wen: It is a peculiar poem in Songs of the South. The so-called "heavenly question" is to list a series of incomprehensible phenomena in history and nature, ask questions to the sky, and explore the truth of the change and development of everything in the universe. In the poem, a * * * asked 172 questions. The general order is to ask the formation of heaven and earth first, then the rise and fall of personnel, and finally it comes down to the real politics of Chu, which shows Qu Yuan's anxiety, disappointment, grief and indignation for the country and his tireless spirit of seeking.