C373 Horrifying Flames of True Qi

Qi, Qi.

It was a mysterious energy that existed in the heavens and the earth, and it was the collective name of all types of Qi.

Early on during the period of the Qin Dynasty and West Han, there were many books that described Qi, such as Laozi, Lie Zi, Huai Nan Zi, and the Yellow Emperor Internal Cultivation Technique. Most of them were books on Taoism or related to Taoism