Chinese medicine master LU Zhizheng holds that

ascending Yang and removing dampness can ascend Yang Qi

relieve Yang stagnation

recover rising and falling of Qi

improve Yin and Yang

thereby removing lowery evil deriving from both outside and inside. He also corresponds herbs of ascending Yang and removing dampness to four seasons

and compares the different herb nature to clemency and clearness of spring

fierce hotness of summer

piercing cold and dryness of autumn

violent cold of winter. He differentiates application according to different patients

regions

time and syndromes. At the same time

he emphasizes compatibility of prescription according to contrast from vital energy to evil Qi.