由少阳而阳明，由阳明而太阳，太阳为阳之极，而又转入于阴，则少阴少阳，乃阴阳初入之
枢。枢者、如门户之枢也。然阴必从阳，故三阴之出入，亦在少阳。阴之不利，由阳
之不利，所以少阴以少阳为主也。欲其枢之利，非温暖之
不可。盖寒则坚凝，热则流通也。（炳章按∶执热则流通一语，故所论俱误，少阴为阴之枢
，少阳为阳之枢，经语何等明白，乃以阴必从阳一语，堕入云雾至一得皆误，不可为训。）
亦有热而不能流通者，不能流通，则出入开阖，不如意而致疾矣。能开不能阖，则多泄泻之
病，能阖不能开，则起隔噎闭结之虞。疾之作，有害于先天，则从肾与膀胱起，有害于后天
，则从脾胃起，起于脾胃，则土不生金而金坏，金坏则水衰，水衰则木枯，木枯则火炽，火
炽则水益涸，水涸则龙火起，龙火起则雷火亦随之，龙雷并起，而一身三焦脏腑，无非火矣
From Shaoyang (Lesser Yang) it transmits to Yangming (Yang Brightness), and from Yangming it transmits to Taiyang (Greater Yang). Taiyang represents the extreme of Yang, yet it subsequently turns into Yin; thus, Shaoyin (Lesser Yin) and Shaoyang are the pivots for the initial entry of Yin and Yang. The pivot is like the hinge of a door. However, Yin must follow Yang; therefore, the entry and exit of the Three Yin meridians (Taiyin, Shaoyin, Jueyin) also depend on Shaoyang. The disadvantage (stagnation/dysfunction) of Yin stems from the disadvantage of Yang; hence, Shaoyin takes Shaoyang as its master. To ensure the smooth operation of this pivot, warming therapy is indispensable. For cold causes firmness and coagulation, whereas heat promotes circulation. (Bingzhang notes: Clinging to the phrase "heat promotes circulation" leads to errors in all discussions. Shaoyin is the pivot of Yin, and Shaoyang is the pivot of Yang; how clear are the classic statements! Yet, due to the phrase "Yin must follow Yang," one falls into confusion, resulting in total error. This cannot serve as a model.) There are cases where there is heat but still no circulation. If there is no circulation, the opening and closing of entry and exit will not function as desired, leading to disease. If one can open but not close, diarrhea diseases are common; if one can close but not open, there is the risk of dysphagia, obstruction, and accumulation. When disease arises, if it harms the Pre-heaven Essence (Innate Constitution), it originates from the Kidney and Bladder; if it harms the Post-heaven Qi (Acquired Constitution), it originates from the Spleen and Stomach. Originating from the Spleen and Stomach, Earth fails to generate Metal, causing Metal to deteriorate; when Metal deteriorates, Water weakens; when Water weakens, Wood withers; when Wood withers, Fire blazes; when Fire blazes, Water dries up further; when Water dries up, Dragon Fire (Ministerial Fire arising from deficiency) rises; when Dragon Fire rises, Thunder Fire follows. With both Dragon and Thunder Fire rising, the entire body's Sanjiao (Triple Burner) and Zang-Fu organs become filled with Fire.