“The theory of Huang Yuanyu's "Qi Zhou Liu, Earth Pivot Four Symbols" provides a new approach for the treatment of depression. Based on this theory, experts propose that the core pathogenesis of depression is the deficiency of central yang and excessive dampness, as well as the abnormal rise and fall of the four symbols. By using methods such as cultivating and supplementing qi, the benign circulation of qi can be restored, and depression can be fundamentally treated. Clinical cases are also used to explain this.”