人身一太极也。静而生阴，则为五脏；动而生阳，则为五腑。一动一静，互为其根。吸门内气管所系，手
太阴肺、手少阴心，居于膈上；足太阴脾、足厥阴肝、足少阴肾，居于腹下。脏数五，其形象地，静而得方。
食管所系，足阳明胃，手太阳小肠、手阳明大肠，一路贯通。足太阳膀胱（有下口而无上口）、足少阳胆（有
上口而无下口），两腑对照。腑数五，其气象天，动而行健。手少阳三焦、手厥阴心包络，有经无形。以五脏
位置言∶离为心火，居南；坎为肾水，居北；坤为脾土，居中；肝不全居左，而震为肝木，居左，气自行于左
；肺本不居右，而兑为肺金，居右，气自行于右。以五腑位置言∶初以胃，统纳水谷；次以小肠，厘清
水谷；于是大肠消其谷，膀胱渗其水，胆则司其事。以阴阳匹配言∶心与小肠合，丁丙共宗；肺与大肠合，辛
庚一本；脾与胃合，己戊伴居；肝与胆合，乙甲同体；肾与膀胱合，癸壬并源；包络与三焦合，营卫相亲。以
阴阳交媾言∶三阴从天降，手太阴肺、手少阴心、手厥阴心包络，列之于上；三阳从地升，手阳明大肠、手太
阳小肠、手少阳三焦，列之于下。其中脾阴胃阳、肝阴胆阳、肾阴膀胱阳，更迭相济。以脏腑经络言∶手之三
阴，从胸走手（手太阴肺，从中府而走手大指之少商；手少阴心，从极泉而走小指之少冲；手厥阴心包络，从
天泉而走中指之中冲）；手之三阳，从手走头（手阳明大肠，从手大指商阳，而走头之迎香；手太阳小肠，从
手小指而走头之听宫；手少阳三焦，从手四指关冲，而走头之丝竹）。所以肺、
心、包络、大小肠、三焦，皆称之曰手。足之三阳，从头走足（足太阳膀胱，从头睛明，而走足小指之至阴；
足阳明胃，从头头维而走足次指之厉兑；足少阳胆，从头童子 而走足四指之窍阴）；足之三阴，从足走腹（
足太阴脾，从足大指隐白，而走腹之大包；足少阴肾，从足心涌泉，而走腹之俞府；足厥阴肝，从足大指大敦，
而走腹之期门）。所以膀胱、胃、胆、脾、肾、肝，皆称之曰足。以阴阳多少言∶太阴、太阳为正，少阴、
少阳次之，厥阴（阴尽也）、阳明（并左右之阳，两阳合明也）又次之（本王启元《内经注》）。肺、脾得正
阴之气，以太阴称，心、肾属少阴，包络与肝，则厥阴矣。受阴气，以是为差。膀胱、小肠，得正阳之气，以
太阳称，三焦与胆，属少阳，胃与大肠，则阳明矣。受阳气，以是为差。以脏腑功用言∶主宰一身者心，而小
肠为受盛之官；宣布万事者肺，而大肠为传导之官；谋胜千里者肝，而胆为决断之官；颐养四体者脾，而胃为
仓廪之官；精贯百骸者肾，而膀胱为津液之官，三焦为气之父，包络为血之母。夫一脏一腑，五脏而称六腑者，
以三焦属腑，故言六腑。然三焦属腑，而称六腑，包络属脏，宜亦可称六脏。由斯而论，言六腑，必言六脏
；言五脏，只可言五腑，以合天地之数。何必参差其说，而言五脏六腑哉！缕陈脏腑，灿然可考，而有不离乎
脏腑，亦不杂乎脏腑，非形象之可绘，言语之可传者，妙在元关一窍。
The human body is a Taiji (Supreme Ultimate). Stillness generates Yin, forming the Zang organs (Yin organs); movement generates Yang, forming the Fu organs (Yang organs). Movement and stillness are mutually rooted. The Xi Men (Gate of Inhalation), connected to the trachea within, along with the Hand-Taiyin Lung meridian and Hand-Shaoyin Heart meridian, reside above the diaphragm; the Foot-Taiyin Spleen meridian, Foot-Jueyin Liver meridian, and Foot-Shaoyin Kidney meridian reside below in the abdomen. The number of Zang organs is five, their form symbolizes Earth, they are static and square.
Connected to the esophagus, the Foot-Yangming Stomach meridian, Hand-Taiyang Small Intestine meridian, and Hand-Yangming Large Intestine meridian run continuously. The Foot-Taiyang Bladder meridian (has an outlet but no inlet) and Foot-Shaoyang Gallbladder meridian (has an inlet but no outlet) stand in contrast. The number of Fu organs is five, their image symbolizes Heaven, they are dynamic and vigorous. The Hand-Shaoyang Sanjiao (Triple Burner) meridian and Hand-Jueyin Pericardium meridian have meridians but no distinct physical form.
Regarding the position of the Zang organs: Li (Fire) represents the Heart Fire, situated in the South; Kan (Water) represents the Kidney Water, situated in the North; Kun (Earth) represents the Spleen Earth, situated in the Center; the Liver does not fully reside on the left, but Zhen (Wood) represents the Liver Wood, situated on the left, with Qi moving naturally to the left; the Lung does not fully reside on the right, but Dui (Metal) represents the Lung Metal, situated on the right, with Qi moving naturally to the right.
Regarding the position of the Fu organs: First is the Stomach, which receives and stores water and grain; next is the Small Intestine, which separates clear from turbid water and grain; then the Large Intestine digests the grain, the Bladder渗 (seeps/drainages) the water, and the Gallbladder oversees these affairs.
Regarding Yin-Yang pairing: The Heart pairs with the Small Intestine, Ding (Yin Fire) and Bing (Yang Fire) share the same source; the Lung pairs with the Large Intestine, Xin (Yin Metal) and Geng (Yang Metal) originate from one root; the Spleen pairs with the Stomach, Ji (Yin Earth) and Wu (Yang Earth) dwell together; the Liver pairs with the Gallbladder, Yi (Yin Wood) and Jia (Yang Wood) are of the same body; the Kidney pairs with the Bladder, Gui (Yin Water) and Ren (Yang Water) share the same origin; the Pericardium pairs with the Sanjiao, Ying (Nutritive Qi) and Wei (Defensive Qi) are close.
Regarding Yin-Yang interaction: The Three Yin meridians descend from Heaven: Hand-Taiyin Lung, Hand-Shaoyin Heart, and Hand-Jueyin Pericardium are listed in the upper part; the Three Yang meridians ascend from Earth: Hand-Yangming Large Intestine, Hand-Taiyang Small Intestine, and Hand-Shaoyang Sanjiao are listed in the lower part. Among them, Spleen Yin and Stomach Yang, Liver Yin and Gallbladder Yang, Kidney Yin and Bladder Yang alternate and assist each other.
Regarding Zang-Fu meridians: The Three Yin meridians of the Hand travel from the chest to the hand (Hand-Taiyin Lung from Zhongfu [LU1] to Shaoshang [LU11] at the tip of the thumb; Hand-Shaoyin Heart from Jiquan [HT1] to Shaochong [HT9] at the tip of the little finger; Hand-Jueyin Pericardium from Tianquan [PC2] to Zhongchong [PC9] at the tip of the middle finger); the Three Yang meridians of the Hand travel from the hand to the head (Hand-Yangming Large Intestine from Shangyang [LI1] at the tip of the thumb to Yingxiang [LI20] on the head; Hand-Taiyang Small Intestine from the tip of the little finger to Tinggong [SI19] on the head; Hand-Shaoyang Sanjiao from Guanchong [TE1] at the tip of the ring finger to Sizhukong [TE23] on the head). Therefore, Lung, Heart, Pericardium, Large and Small Intestines, and Sanjiao are all called "Hand" meridians.
The Three Yang meridians of the Foot travel from the head to the foot (Foot-Taiyang Bladder from Jingming [BL1] on the head to Zhiyin [BL67] at the tip of the little toe; Foot-Yangming Stomach from Touwei [ST8] on the head to Lidi [ST45] at the tip of the second toe; Foot-Shaoyang Gallbladder from Tongziliao [GB1] on the head to Qiaoyin [GB44] at the tip of the fourth toe); the Three Yin meridians of the Foot travel from the foot to the abdomen (Foot-Taiyin Spleen from Yinbai [SP1] at the tip of the big toe to Dabao [SP21] on the abdomen; Foot-Shaoyin Kidney from Yongquan [KI1] on the sole of the foot to Shufu [KI27] on the abdomen; Foot-Jueyin Liver from Dadun [LR1] at the tip of the big toe to Qimen [LR14] on the abdomen). Therefore, Bladder, Stomach, Gallbladder, Spleen, Kidney, and Liver are all called "Foot" meridians.
Regarding the degree of Yin and Yang: Taiyin and Taiyang are primary; Shaoyin and Shaoyang are secondary; Jueyin (end of Yin) and Yangming (combination of left and right Yang, two Yangs combined) are tertiary (based on Wang Qiyuan's *Neijing Zhu*). Lung and Spleen receive the primary Yin Qi, hence called Taiyin; Heart and Kidney belong to Shaoyin; Pericardium and Liver belong to Jueyin. The reception of Yin Qi varies accordingly. Bladder and Small Intestine receive the primary Yang Qi, hence called Taiyang; Sanjiao and Gallbladder belong to Shaoyang; Stomach and Large Intestine belong to Yangming. The reception of Yang Qi varies accordingly.
Regarding Zang-Fu functions: The Heart governs the whole body, while the Small Intestine is the Official of Reception and Storage; the Lung announces all matters, while the Large Intestine is the Official of Conduction; the Liver plans strategies for a thousand miles, while the Gallbladder is the Official of Decision; the Spleen nourishes the four limbs, while the Stomach is the Official of Granary; the Kidney penetrates the hundred bones, while the Bladder is the Official of Fluids; the Sanjiao is the Father of Qi, and the Pericardium is the Mother of Blood.
One Zang pairs with one Fu; there are five Zang but six Fu because the Sanjiao belongs to the Fu category, thus speaking of six Fu. However, since Sanjiao is a Fu and called one of the six Fu, and the Pericardium is a Zang, logically it could also be called one of the six Zang. From this perspective, speaking of six Fu necessitates speaking of six Zang; speaking of five Zang implies only five Fu, to align with the numbers of Heaven and Earth. Why should theories differ by speaking of five Zang and six Fu? Detailed exposition of Zang and Fu is clear and verifiable, yet there is something that neither departs from nor mixes with Zang and Fu, which cannot be depicted by images or transmitted by words; its wonder lies in the Mysterious Pass (Xuan Guan).