心，火脏，身之主，神明之舍也。《小篆》尝言∶心字，篆文只是一倒火字耳。盖心，
火也，不欲炎上，故颠倒之，以见调燮之妙也。祝无功曰∶庖氏一画，直竖之则为 ，左右
倚之则为 为HT ，缩之则为 ，曲之则乙，乙 圆而神，一 HT 方以直。世间字变化
浩繁
，未有能外一 HT 架构之者，独心字欲动欲流，圆妙不居，出之乎一 HT 之外，更
索一
字与作对不得。正以“心”者“新”也，神明之官，变化而日新也。心主血脉，血脉日新，
新新不停则为平人，否则病矣（其合脉也，其荣色也，开窍于舌。
肝木脏，魂所藏也。肝者干也，以其体状有枝干也。又位于东方，而主生气。时医昧其
理，反云肝无补法，宜凉伐。只泥木克土之一说，而不知后天八卦配《河图》之象，三八为
爪居东，即后天震巽之位，巽上坤下则为观。《易》曰∶“观天之神道，而四时不忒，上坤
下震，则为复。”《易》曰∶“复其见天地之心乎，为义大矣哉。”（其合筋也，其荣爪也，
开窍于目。
脾为土脏，藏意与智，居心肺之下，故从卑。又脾者裨也，裨助胃气，以化谷也。《经
》云∶“纳谷者昌。”其在此乎（其合肉也，其荣唇也，开窍于口。
肺，金脏，魄所藏也。肺者，沛也，中有二十四孔，分布清浊之气，以行于诸脏，使沛
然莫御也。《内经》曰∶“肺恶寒”。又曰∶“形寒饮冷则伤肺。”勿只守土克金之一说也
（其合皮也，其荣毛也，开窍于鼻。
心，属火之脏，是身体的主宰，也是神明的居所。《小篆》曾言：心字的篆文，不过是一个倒置的火字罢了。因为心属火，但不愿火势炎上，所以将其颠倒，以显示调和燮理的奥妙。祝无功说：庖氏的一笔，竖直则为“丨”，向左或向右倚靠则为“丿”或“㇏”，缩短则为“丶”，弯曲则为“乙”。“乙”圆而灵动，“丨”方而正直。世间文字变化浩繁，没有能超出“丨”这一架构的，唯独“心”字欲动欲流，圆妙不居，出于“丨”之外，再找一个字与之相对都找不到。正因为“心”通“新”，作为神明之官，其功能变化而日日更新。心主司血脉，血脉日日更新，新新不停则成为健康之人（平人），否则就会生病。（心与脉相合，其华在面色，开窍于舌。）
肝，属木之脏，是魂的藏所。肝者，干也，因其形体有枝干之状。又位于东方，主生发之气。当时的医生不明此理，反而说肝无补法，适宜用凉药攻伐。只拘泥于木克土这一说法，而不知后天八卦配合《河图》的象数，三和八为爪（此处指代东方木位之象）居于东，即后天震、巽之位，巽在上坤在下则为观卦。《易经》说：“观察天道的神妙运行，四季不会差错。”上坤下震，则为复卦。《易经》说：“复卦体现了天地之心吗？其中的意义太伟大了。”（肝与筋相合，其华在爪甲，开窍于目。）
脾，属土之脏，藏意与智，位居心肺之下，故从卑顺之意。又脾者，裨也，意为裨助胃气，以消化谷物。《内经》说：“饮食正常则昌盛。”大概就是指这个吧。（脾与肉相合，其华在口唇，开窍于口。）
肺，属金之脏，是魄的藏所。肺者，沛也，中有二十四孔，分布清浊之气，以通行于各脏腑，使其充沛不可抵御。《内经》说：“肺恶寒。”又说：“形体受寒、饮食生冷则会伤肺。”不要只固守土克金这一种说法。（肺与皮相合，其华在毛发，开窍于鼻。）
The Heart is the Fire Zang organ, the master of the body, and the residence of Shen (Spirit). The *Xiaozhuan* (Small Seal Script) once stated: the character for "Heart" in seal script is merely an inverted character for "Fire." This is because the Heart belongs to Fire but does not wish for the flame to blaze upward; thus, it is inverted to demonstrate the subtlety of harmonizing and regulating. Zhu Wugong said: A single stroke by Pao Shi, when vertical, becomes "Shu"; leaning left or right becomes "Pie" or "Na"; shortened, it becomes "Dian"; curved, it becomes "Yi." "Yi" is round and spiritual; "Shu" is square and upright. The changes in characters in the world are myriad, yet none can exist outside the framework of "Shu." Only the character "Heart" desires movement and flow, round and wondrous, abiding nowhere, emerging beyond "Shu," such that no other character can be found to pair with it. Precisely because "Heart" (Xin) sounds like "New" (Xin), as the official of Spirit, it changes and renews daily. The Heart governs the Blood vessels. If the blood vessels renew daily, continuously and without cessation, one becomes a healthy person (Ping Ren); otherwise, disease occurs. (It correlates with the vessels, its luster manifests in the complexion, and it opens into the tongue.)
The Liver is the Wood Zang organ, where Hun (Ethereal Soul) resides. "Liver" (Gan) implies "trunk" (Gan), due to its physical form resembling branches and trunks. It is located in the East and governs the Qi of growth and generation. Contemporary physicians, ignorant of this principle, claim there is no method for tonifying the Liver and advocate using cooling and purging methods. They cling solely to the theory of Wood overcoming Earth, failing to understand the imagery of the Later Heaven Bagua combined with the *Hetu* (River Map). Three and Eight correspond to nails/claws [symbolizing Wood] residing in the East, which corresponds to the positions of Zhen and Xun in the Later Heaven. When Xun is above and Kun below, it forms the Hexagram Guan (View). The *I Ching* states: "Observing the divine way of Heaven, the four seasons do not err." With Kun above and Zhen below, it forms the Hexagram Fu (Return). The *I Ching* states: "Does not Fu reveal the Heart of Heaven and Earth? Its meaning is great indeed!" (It correlates with the tendons, its luster manifests in the nails, and it opens into the eyes.)
The Spleen is the Earth Zang organ, storing Yi (Intellect) and Zhi (Willpower). It resides below the Heart and Lungs, hence deriving from the concept of humility/subservience. "Spleen" (Pi) implies "assist" (Bi), assisting Stomach Qi to transform food grains. The *Classic* states: "When grain is accepted, prosperity ensues." Does this not refer to this function? (It correlates with the flesh, its luster manifests in the lips, and it opens into the mouth.)
The Lung is the Metal Zang organ, where Po (Corporeal Soul) resides. "Lung" (Fei) implies "abundant/flowing" (Pei). Within are twenty-four pores, distributing clear and turbid Qi to circulate among all Zang organs, making it abundant and unstoppable. The *Neijing* states: "The Lung dislikes cold." It also states: "External cold affecting the form and cold drinks injuring the interior will damage the Lung." Do not adhere rigidly only to the theory of Earth overcoming Metal. (It correlates with the skin, its luster manifests in the hair, and it opens into the nose.)