岚瘴乃山川郁薄、沆瀣之气，天道乖违，则弥漫充塞于六合之内，则日月蔽其光彩。如
患
疠风之人，湿热邪毒之气蒸袭，或服热毒之药久，则眼目昏暗，翳障注烂，自然失明也。
云从龙，风从虎，乃阴阳物理之道。若龙虎失职，暴厥逞威，则风云倏陡，电雷交掣，
淫雨
滂沱，飙飓嘘吼，其波涛涌跃，泛滥狂越矣。如风疠之人不惜身命，冒犯贼邪，则气血由
之而荡败，恶证由此而更改，大病既成，将何救治?
火炎昆岗，则玉石俱成灰烬矣。烟炱狂洋，草木岂能抵受?枝叶焦坠，根本伤残。如风
病之人邪火内盛，则毛发须眉焦燥败脱，髓液干枯，面貌不荣，肌肤黄瘁不泽矣。
《老子》云∶谷神不死，是为元牝。又云∶元牝之根，众妙之门。人之泥丸、丹田，元
神守之，如
元神不守，则精气离散，病将生焉。神既不守于宫，精神涣散，元气无根据矣。则声何从而
响
应，神气之者，元神有亏，橐 关节危败，则音声变异矣。如风病之人邪火焰盛，致精神散
乱，气血败亡，橐 会厌无从摄养，则语言错杂，音哑呆噤之病变，更健忘颠倒也。
草木果粟之实由花以结成，花之向导乃心上之簇粉也。若花之粉箱有损，则不结实矣。
如花发时被蜂蝶之蠹残蚀其心，则不成实，总结亦难肥大。由此，知人之元神在于精气，元
神全以肾水所钟，若风病之人不惜身命，恣贪色欲，败损精液，如花之损心，则性命不能
延永。
岚瘴是山川间郁结深厚的、天地间的湿气，如果天道失常，就会弥漫充满在天地四方之内，从而遮蔽日月使其失去光彩。就像患疠风（麻风病）的人，被湿热邪毒之气熏蒸侵袭，或者长期服用热毒的药物，就会导致眼睛昏暗，眼睑溃烂流脓，自然失明。
云跟随龙产生，风跟随虎产生，这是阴阳运行的物理规律。如果龙虎失职，暴戾的厥气逞威，那么风云就会突然陡峭变化，雷电交加，暴雨倾盆，狂风呼啸，波涛汹涌泛滥，狂乱越界。就像患风疠的人不爱惜身体性命，冒犯贼邪之气，那么气血因此荡然败坏，恶证由此改变，大病既然已经形成，将要用什么来救治？
火燃烧昆冈山，玉石都会变成灰烬。烟灰狂涌，草木怎么能承受得住？枝叶焦枯坠落，根本受到伤残。就像患风病的人邪火内盛，导致毛发胡须焦燥脱落，骨髓体液干枯，面貌不荣润，肌肤黄瘦没有光泽。
《老子》说：谷神不死，称为玄牝。又说：玄牝之根，是众妙之门。人的泥丸宫和丹田，由元神守护，如果元神不守，那么精气离散，疾病就会产生。神既然不守在宫中，精神涣散，元气就没有了根据。那么声音从哪里产生响应？神气受损，元神有亏缺，橐龠（指呼吸及气机升降的枢纽）关节危败，声音就会变异。就像患风病的人邪火焰盛，导致精神散乱，气血败亡，橐龠与会厌无法得到摄养，就会出现语言错杂、音哑呆滞禁闭的病变，更加健忘颠倒。
草木果粟的果实由花结成，花的向导是心上的簇粉。如果花的花粉箱有损伤，就不能结实。如果花开时被蜂蝶蛀蚀残害其中心，就不能成果实，即使总结也难以肥大。由此可知，人的元神在于精气，元神的保全全赖肾水的钟聚，如果患风病的人不爱惜身体性命，放纵贪恋色欲，败损精液，就像花损坏了中心，那么性命就不能延续长久。
Lanzhang (miasma) is the damp and turbid Qi condensing deeply within mountains and rivers. When the Way of Heaven deviates, it fills and obstructs the four quarters of the universe, thereby obscuring the luster of the sun and moon. It is like a person suffering from Lifeng (leprosy), whose eyes become dim due to the steaming and attacking pathogenic factors of damp-heat and toxic heat, or who has taken heat-toxic medicines for a long time; this leads to nebulae and ulcers in the eyelids, resulting in natural blindness.
Clouds follow dragons, and winds follow tigers; this is the physical principle of Yin and Yang. If the dragon and tiger lose their functions, violent Jue Qi (rebellious Qi) exerts its power, causing clouds and winds to change suddenly and steeply, lightning and thunder to clash, torrential rains to pour down, and fierce hurricanes to roar. The waves surge and overflow, becoming wild and uncontrolled. Similarly, if a person suffering from Fengli does not cherish their life and body, but instead exposes themselves to thief-pathogens, the Blood and Qi will be荡败 (routed and ruined) because of this, and malignant syndromes will alter accordingly. Once a major disease is established, how can it be treated?
When fire burns Kun Gang, both jade and stone turn to ashes. How can grass and trees withstand the raging flood of soot? Their branches and leaves scorch and fall, and their roots are injured and damaged. Similarly, when a person suffering from Fengbing has excessive internal pathogenic fire, their hair, beard, and eyebrows become dry, scorched, and fall out; the marrow and fluids dry up; the face loses its luster; and the skin becomes yellow, emaciated, and dull.
The *Laozi* states: "The Spirit of the Valley never dies, this is called the Mysterious Female." It also says: "The root of the Mysterious Female is the Gate of all Wonders." In humans, the Niwang Palace (upper dantian) and Dantian (lower dantian) are guarded by Yuanshen (Original Spirit). If Yuanshen does not reside there, Jingqi (Essence and Qi) will scatter, and diseases will arise. If the Spirit does not reside in the palace, the Shen (Spirit) will dissipate, and Yuanqi (Original Qi) will have no foundation. Then from where would sound respond? If Shenqi is damaged and Yuanshen is deficient, the Tuoyue (bellows-like mechanism of Qi movement) and joints will fail critically, leading to changes in voice. For instance, in a person with Fengbing, intense pathogenic flames cause mental confusion and the collapse of Blood and Qi. Since the Tuoyue and epiglottis cannot be nourished and controlled, symptoms such as disordered speech, hoarseness, mutism, and stupor occur, along with increased forgetfulness and inversion of memory.
The fruits of grasses, trees, and grains are formed from flowers, and the guide for the flower is the cluster of powder on the heart of the flower. If the pollen box of the flower is damaged, it will not bear fruit. If the center of the flower is eaten away by bees and butterflies during blooming, it will not form fruit, and even if it forms, it will struggle to grow large. From this, we know that human Yuanshen resides in Jingqi, and the preservation of Yuanshen relies entirely on the accumulation of Kidney Water. If a person with Fengbing does not cherish their life, indulges in lust, and damages their essence and fluids, it is like a flower having its heart damaged; thus, their life span cannot be prolonged.