孟少，仲平，季多也。
《内经》以寅、申、巳、亥四孟为一阴一阳也，子、午、卯、酉四仲为一阴一
阳也，辰、戌、丑、未为三阴三阳也。然阳为先，故主虚无变化，轻微而少；阴
为后，故形体安静，重浊而多也。故风火动乱至阳为先，居孟，未甚为少；寒湿
肃静至阴为后，居季，已甚而为多，燥热各得乎中，故居仲而平也。注曰∶气有
多少，是言六气；形有旺衰，言五运也。
诸风掉眩皆属肝木。诸痛痒疮疡皆属心火。
诸湿肿满皆属脾土。诸寒收引皆属肾水。
诸气 郁病痿皆属肺金。
（闷乱也。）郁（结滞、壅塞也。）
诸暴强直，支痛耍戾，里急，筋缩，皆属于风（乃厥阴风木，肝胆之气也）。
诸病喘呕吐酸，暴注下迫，转筋，小便混浊，腹胀大鼓之如鼓有声，痈疽疡
疹，瘤气结核，吐下霍乱，瞀郁肿胀，鼻塞鼽衄，血溢血泄，淋闭身热，恶寒战
栗，惊惑悲笑谵妄，衄 血汗皆属于热（少阴君火，乃真心、小肠之气也）。
注（泄也。下迫后痛，里急痛也。）结核（言肌肉结硬如果中核也。）溢（上出。）泄（下出。） （音
慢，血汗也。）衄（音肉，鼻出血也。）
诸痉强直，积饮痞隔，中满，霍乱吐下，体重 肿，肉如泥而按不复起，皆
属于湿也（太阴湿土，乃脾与胃之气也）。
痉（其井切，似风狂病也，一名曰 尺至切）。积饮（水蓄不散也。）痞（否），肠胃气液血脉否
闭，不能营运，谓之痞也。水谷传化阻隔失常，则曰膈 （音附）。
诸热瞀螈，筋惕悸动，搐搦螈 ，暴喑冒昧，躁扰狂越，骂詈惊骇， 肿疼
酸，气逆冲上，禁栗如丧神守，嚏呕疮疡，喉痹，耳鸣及聋，呕涌溢，食不下，
目昧不明，暴注 螈，暴病暴死，皆主于火也（手少阳相火乃心包络、三焦之气也）。
螈（尺至切）。喑（音）。 （哑）。狂（躁乱发狂也）。禁栗（寒战如丧心神之守）。嚏（音帝。）
（音纵，儿病也）。螈（音契，小儿病也）。
诸涩枯涸，干劲皴揭，皆属于燥（阳明燥金，肺与大肠之气。）
诸病上下所出水液澄彻清冷， 瘕 疝，坚痞、腹满急痛，下利青白，食已
不饥，吐利腥秽，屈伸不便，厥逆禁固，皆属于寒（太阳寒水乃肾与膀胱之气也）。
初、中、末三个阶段，分别是少、平、多的状态。
《黄帝内经》认为寅、申、巳、亥这四个“孟”位代表一阴一阳；子、午、卯、酉这四个“仲”位代表一阴一阳；辰、戌、丑、未这三个“季”位代表三阴三阳。然而阳气处于先导地位，所以主管虚无变化，性质轻微而数量少；阴气处于后随地位，所以形体安静，性质重浊而数量多。因此，风、火属于动荡混乱的至阳之气，处于先导（孟）的位置，尚未达到极盛，所以量少；寒、湿属于肃静收敛的至阴之气，处于末尾（季）的位置，已经极盛，所以量多；燥、热各得其适中位置，所以处于中间（仲）且平衡。注释说：气的多少，是指六气（风、暑、燥、湿、寒、火）；形的旺衰，是指五运（木、火、土、金、水）。
所有风邪引起的震颤眩晕都归属于肝木。所有疼痛、瘙痒、疮疡都归属于心火。
所有湿气引起的肿胀胀满都归属于脾土。所有寒气引起的收缩牵引都归属于肾水。
所有气机郁滞、病证痿软都归属于肺金。
（闷乱也。）郁（结滞、壅塞也。）
所有突然发生的强直拘急，肢体疼痛扭曲，腹内急迫，筋脉挛缩，都归属于风（这是厥阴风木，即肝胆之气）。
所有气喘呕吐酸水，突然腹泻里急后重，肌肉痉挛，小便浑浊，腹部胀大叩之如鼓有声，痈疽疮疹，瘤气结核，吐泻霍乱，神志昏乱肿胀，鼻塞流涕鼻出血，血液溢出或泄下，淋证闭涩身体发热，恶寒战栗，惊恐迷惑悲伤大笑胡言乱语，鼻出血汗出都归属于热（这是少阴君火，即真心、小肠之气）。
注（泄也。下迫后痛，里急痛也。）结核（言肌肉结硬如果中核也。）溢（上出。）泄（下出。） （音慢，血汗也。）衄（音肉，鼻出血也。）
所有痉病强直，痰饮积聚痞塞阻隔，胸腹满闷，霍乱吐泻，身体沉重浮肿，肌肉松软按之凹陷不起，都归属于湿（这是太阴湿土，即脾与胃之气）。
痉（其井切，似风狂病也，一名曰 尺至切）。积饮（水蓄不散也。）痞（否），肠胃气液血脉否闭，不能营运，谓之痞也。水谷传化阻隔失常，则曰膈 （音附）。
所有热病神志昏乱抽搐，筋肉跳动悸动，搐搦抽搐，突然失声昏昧，烦躁扰乱狂越，骂人惊骇，肿胀疼痛酸痛，气逆冲上，寒战如同丧失心神主宰，喷嚏呕吐疮疡，喉痹，耳鸣及耳聋，呕吐涌溢，饮食不下，视物不明，突然腹泻抽搐，突发疾病突然死亡，都主属于火（这是手少阳相火，即心包络、三焦之气）。
螈（尺至切）。喑（音）。 （哑）。狂（躁乱发狂也）。禁栗（寒战如丧心神之守）。嚏（音帝。） （音纵，儿病也）。螈（音契，小儿病也）。
所有涩滞干枯，皮肤干燥皲裂，都归属于燥（这是阳明燥金，即肺与大肠之气）。
所有上下排出的水液清澈寒冷，瘕疝，坚硬痞块、腹部胀满急痛，下利青白色，进食后不觉得饥饿，吐泻物腥臭秽浊，屈伸不便，四肢厥冷僵硬，都归属于寒（这是太阳寒水，即肾与膀胱之气）。
The beginning, middle, and end stages correspond to the states of "few," "balanced," and "many," respectively.
The *Huangdi Neijing* (Yellow Emperor's Inner Canon) posits that Yin-Shen-Si-Hai, these four "Meng" (beginning) positions, represent one Yin and one Yang; Zi-Wu-Mao-You, these four "Zhong" (middle) positions, represent one Yin and one Yang; Chen-Xu-Chou-Wei, these three "Ji" (end) positions, represent three Yin and three Yang. However, Yang Qi acts as the pioneer, thus governing voidness and transformation, being slight in nature and few in quantity; Yin Qi follows, thus possessing a quiet form, being heavy and turbid in nature, and many in quantity. Therefore, Wind and Fire, which are turbulent and chaotic, belong to the extreme Yang Qi, occupying the leading position (Meng), not yet reaching extremity, hence they are few; Cold and Dampness, which are solemn and quiet, belong to the extreme Yin Qi, occupying the terminal position (Ji), having reached extremity, hence they are many; Dryness and Heat each occupy their intermediate position, thus residing in the middle (Zhong) and remaining balanced. The annotation states: The abundance or scarcity of Qi refers to the Six Qi (Wind, Summer-Heat, Dryness, Dampness, Cold, Fire); the prosperity or decline of Form refers to the Five Movements (Wood, Fire, Earth, Metal, Water).
Cold, Summer-Heat, Dryness, Dampness, Wind, Fire.
All cases of tremors and dizziness caused by Wind belong to Liver Wood. All cases of pain, itching, sores, and ulcers belong to Heart Fire.
All cases of swelling and fullness caused by Dampness belong to Spleen Earth. All cases of contraction and pulling caused by Cold belong to Kidney Water.
All cases of Qi stagnation and flaccidity syndromes belong to Lung Metal.
(Mental oppression and confusion.) Yu (Stagnation, obstruction.)
All sudden cases of rigidity and stiffness, limb pain and twisting, internal urgency, and tendon contraction belong to Wind (this is Jueyin Wind-Wood, the Qi of the Liver and Gallbladder).
All cases of wheezing, vomiting, and acid regurgitation, sudden diarrhea with tenesmus, muscle spasms, turbid urine, abdominal distension large and drum-like upon percussion, carbuncles, sores, rashes, tumor-Qi, and lymphatic nodules, vomiting and diarrhea Huoluan, mental confusion and swelling, nasal congestion, rhinorrhea, and epistaxis, blood extravasation or hemorrhage, strangury and retention with body heat, aversion to cold and shivering, fright, bewilderment, sadness, manic laughter, delirium, epistaxis, and sweating all belong to Heat (this is Shaoyin Sovereign Fire, the Qi of the True Heart and Small Intestine).
Annotation (Evacuation. Pain after lower pressure, internal urgency pain.) Tuhe (Refers to hard knots in muscles resembling kernels.) Yi (Emerging from above.) Xie (Exiting from below.) (Pronounced man, blood sweat.) Nu (Pronounced rou, nasal bleeding.)
All cases of spasm and rigidity, accumulation of fluid and phlegm causing obstruction, chest and abdominal fullness, Huoluan with vomiting and diarrhea, heavy body and edema, flesh like mud that does not rise when pressed, all belong to Dampness (this is Taiyin Wet-Earth, the Qi of the Spleen and Stomach).
Jing (Pronounced jing, resembling a wind-madness disease, also known as chi-zhi qie.) Ji-Yin (Water accumulating without dispersing.) Pi (Obstruction), where Qi, fluids, and blood vessels in the intestines and stomach are blocked, unable to circulate, is called Pi. When the transmission and transformation of water and grain are obstructed abnormally, it is called Ge (Pronounced fu).
All cases of heat-induced mental confusion and convulsions, twitching and palpitations, spasms and convulsions, sudden aphonia and stupor, restlessness, agitation, mania, cursing, fright, swelling, pain, and soreness, counterflow Qi rushing upward, chattering as if losing spiritual control, sneezing, vomiting, sores and ulcers, throat obstruction, tinnitus and deafness, vomiting and overflow, inability to eat, blurred vision, sudden diarrhea and convulsions, sudden illness and sudden death, are primarily attributed to Fire (this is Hand-Shaoyang Ministerial Fire, the Qi of the Pericardium and Sanjiao).
Chou (Pronounced chi-zhi qie.) Yin (Pronounced...). (Aphonic.) Kuang (Agitated and mad.) Jinli (Shivering as if losing the guard of spirit and mind.) Ti (Pronounced di.) (Pronounced zong, a pediatric disease.) Chou (Pronounced qi, a pediatric disease.)
All cases of astringency, dryness, and withering, dry skin and cracking, belong to Dryness (this is Yangming Dry-Metal, the Qi of the Lungs and Large Intestine).
All cases of clear and cold fluids excreted from above and below, jia-hernia, hard masses and fixed lumps, abdominal fullness and urgent pain, diarrhea with green and white stools, lack of hunger after eating, vomit and diarrhea with fishy and foul odors, difficulty in flexion and extension, cold limbs and rigidity, all belong to Cold (this is Taiyang Cold-Water, the Qi of the Kidneys and Bladder).