肺主宗气而营运周身。脾胃主中气而消化水谷。肾中命门主藏元阳。（两肾之间有命门、中脏一点是元阳）
而主一身之元气。肺气虚者。气喘息促。时时自汗。喉燥音低。气少不能言。言而微。终日乃复言。中气虚者。四
末微冷。腹胀时减。复如故。痛而喜按。按之则痛止。不欲食。食不能化。大便或溏或泻。肢软微麻。元气
虚者。虚阳上浮。则咽痛声嘶。耳鸣虚聋。两颧嫩红带白。头晕心悸。时或语言蹇涩。时或口角流涎。瞳神时散时缩。
时而下眼皮跳。时而眼睛发直。时而语无头尾。言无伦次。时而两手发战。时而手足发麻。时而筋惕肉 。
时而睡卧自觉身重。时而心口一阵发空。气不接续者。此皆病患平素气虚之证据。若偶感外邪。必先权衡其标本缓急。
标急治标。本急顾本。选和平切病之品。一使其病势渐减。一使其正气渐复。虽无速效。亦无流弊。
肺气实而上逆。则有胸痞头眩。痰多气壅等症。甚则喘不得卧。张口抬肩。胃气实而中满。则有嘈杂懊 。嗳腐吐
酸等症。甚则食不能进。呕吐呃逆。肠气实而下结。则有腹胀满。绕脐痛。大便燥结胶闭。或挟热下利。或热结旁流
等症。甚则喘冒不得卧。潮热谵语。肝气实而上冲。则有头痛目眩。呕酸吐苦等症。甚则消渴。气上冲心。心中痛热。
横窜则有肢厥筋挛。手足螈 等症。下逼则有腹痛便泄。里急后重等症。甚或男子睾丸疝疼。女子小腹肿痛。阴
肿阴痛带下崩中。其中必有痰热、湿热、食滞、郁结、伏火、内风等因。治必先其所因。伏其所主。对症发药。药宜
专精。直去其邪以安正。
肺主管宗气，并在全身运行。脾胃主管中气，负责消化水谷。肾中的命门主管储藏元阳。（两肾之间有命门，即脏腑中心的一点是元阳），并主宰一身的元气。
肺气虚的人，会出现气喘、呼吸急促，经常自汗，咽喉干燥、声音低微，气短不能多说话，说话声音微弱，整天才能说几句话。中气虚的人，四肢末端微微发冷，腹部胀满但有时减轻，过后又恢复原状，腹痛且喜欢按压，按压后疼痛停止，不想吃东西，吃了也不能消化，大便时而稀溏时而泄泻，肢体软弱无力、微微麻木。元气虚的人，虚阳上浮，则出现咽痛、声音嘶哑，耳鸣、听力减退（虚聋），两颧嫩红带白，头晕、心悸，有时语言蹇涩，有时口角流涎，瞳孔时而散大时而缩小，时而下眼皮跳动，时而眼睛发直，时而说话没有头绪、语无伦次，时而双手颤抖，时而手足麻木，时而肌肉跳动，时而睡觉时自觉身体沉重，时而心口一阵发空、气息不接续。这些都是病人平时气虚的证据。如果偶然感受外邪，必须先权衡病证的标本缓急。标症急则治标，本症急则顾本。选择平和且切合病情的药物，一方面使病势逐渐减轻，一方面使正气逐渐恢复。虽然不会有速效，也不会有副作用。
肺气实而上逆，就会出现胸中痞闷、头晕目眩、痰多气壅等症状，严重时喘促不能平卧，张口抬肩。胃气实而中焦痞满，就会出现嘈杂不适、心中懊恼、嗳气带有腐臭味、吐酸水等症状，严重时食物无法进入，呕吐、呃逆。肠气实而下部结滞，就会出现腹部胀满、绕脐疼痛、大便燥结闭塞不通，或者夹杂热象而下利，或者热结旁流等症状，严重时喘促昏冒不能平卧，潮热、胡言乱语。肝气实而上冲，就会出现头痛、目眩、呕酸、吐苦等症状，严重时出现消渴，气上冲于心，心中疼痛发热，横窜经络则出现四肢厥冷、筋脉拘挛、手足抽搐等症状，下迫则出现腹痛便泄、里急后重等症状，甚至男子出现睾丸疝痛，女子出现小腹肿痛、阴部肿胀疼痛、白带过多、崩漏等症。其中必然有痰热、湿热、食积停滞、郁结、伏火、内风等原因。治疗必须先针对病因，控制主要病机，对症用药，药力应当专精，直接去除邪气以安护正气。
The Lung governs Zong Qi (Gathering Qi) and circulates it throughout the body. The Spleen and Stomach govern Zhong Qi (Middle Qi) and are responsible for digesting food and fluids. The Mingmen (Gate of Life) in the Kidney governs the storage of Yuan Yang (Original Yang). (Between the two Kidneys lies the Mingmen, a single point at the center of the viscera which is Yuan Yang), and it governs the Yuan Qi (Primary Qi) of the entire body.
When Lung Qi is deficient, there will be panting and shortness of breath, spontaneous sweating from time to time, dry throat with low voice, shortness of breath making speech difficult, faint voice when speaking, and only being able to speak after a whole day. When Middle Qi is deficient, the four extremities will be slightly cold, abdominal distension that reduces occasionally but returns to its original state, abdominal pain that prefers pressure and stops upon pressing, lack of desire to eat, inability to digest food, loose stools or diarrhea, weak limbs with slight numbness. When Yuan Qi is deficient, floating deficient Yang may cause sore throat and hoarseness, tinnitus and deafness due to deficiency, tender redness with white on both malar areas, dizziness and palpitations, occasional slurred speech, drooling from the corner of the mouth, pupils dilating and contracting intermittently, twitching of the lower eyelid, staring blankly, incoherent speech lacking logic, trembling of both hands, numbness of limbs, muscle twitching, feeling heavy while sleeping, and a sensation of emptiness in the chest with interrupted breathing. These are all evidences of chronic Qi deficiency in the patient. If accidentally affected by external pathogens, one must first weigh the root and branch, urgency and slackness. Treat the branch if it is urgent; support the root if it is urgent. Select mild and appropriate herbs to gradually reduce the pathogenic factor and gradually restore healthy Qi. Although there may be no rapid effect, there will be no adverse consequences.
When Lung Qi is excess and rebels upward, symptoms such as chest oppression, dizziness, excessive phlegm, and Qi stagnation occur. In severe cases, panting prevents lying down, requiring opening the mouth and raising the shoulders. When Stomach Qi is excess causing middle Jiao fullness, symptoms such as epigastric discomfort, mental restlessness, belching with rotten odor, and vomiting acid water occur. In severe cases, food cannot enter, leading to vomiting and hiccups. When Intestine Qi is excess causing lower obstruction, symptoms such as abdominal distension, periumbilical pain, dry and hard stool blockage, or heat-induced diarrhea, or heat binding with side-flow occur. In severe cases, panting and vertigo prevent lying down, accompanied by tidal fever and delirious speech. When Liver Qi is excess and rushes upward, symptoms such as headache, dizziness, vomiting acid, and bitter taste occur. In severe cases, Xiao Ke (Wasting-Thirst) occurs, Qi rushes to the Heart causing painful heat in the chest, lateral invasion causes limb coldness and tendon spasms, convulsions of hands and feet, downward pressure causes abdominal pain with diarrhea, tenesmus, and even orchitis/hernia pain in men, or lower abdominal swelling/pain, vulvar swelling/pain, leukorrhea, and metrorrhagia in women. Among these, there must be factors such as Phlegm-Heat, Damp-Heat, Food Stagnation, Depression/Constriction, Hidden Fire, or Internal Wind. Treatment must first address the cause, control the dominant pathology, prescribe medicine according to symptoms, and use specialized formulas to directly eliminate the pathogen and protect healthy Qi.