The meridians of the human body are divided into yin and yang,and the pivots of the human body are also divided into yin and yang.Lesser yang meridian as a yang pivot is mainly treated with Minor Bupleurum Decoction to reconcile the exterior and interior,while revert yin meridian is mainly treated with Mume Pill to reconcile the yin and yang.It can be inferred that revert yin has the func-tion of communicating yin and yang and maintaining the coordination and balance of yin and yang.The liver located in the meridian is called reverted yin,which is called"one yin".It is the place where"two yin intersect",the end of the three yin,the extreme of the six meridians,and the hub of communication between yin and yang.The liver is substantially yin but functionally yang,with yin substance and yang function,is the"pivot of yin and yang",which includes the features of both yin and yang.The liver is a viscus of wind and wood;"yang is usually redundant while yin is ever deficient".The liver's yin blood is easily deficient,causing the liver's yang to be-come excessive,leading to the tendency to generate wind and fire,which is in line with the characteristics of"yin exhaustion and yang generation"of the reverting meridian.Therefore,the reverting yin liver is the pivot of the yin meridians,and the liver is the pivot of yin and yang.
the yin-yang pivorthe pivot of the yang meridianthe pivot of the yin meridianreverting yin liverpivot