This is Sima Qian's comment on the "Historical Records" he was compiling at the time in "Report to Ren An".

His purpose in writing Taishi Gongshu

is to "study the relationship between heaven and man and understand the changes in ancient and modern times." ("Book of Han·Biography of Sima Qian") "Understanding the changes of the past

to the present" is to understand the trajectory of development and changes in history from ancient to modern times; "Studying the relationship between heaven and man" is the pursuit of understanding heaven

< p>Human relationships. The relationship between heaven and man, that is, the relationship between heaven and man, was a big issue that scholar-officials pursued in the Warring States, Qin and Han Dynasties.