真人曰∶常习不唾地。盖口中津液是金浆玉醴，能终日不唾，常含而咽之，令人精气常流，面目有光。
书云∶养性者唾不至远。远则精气俱损，久成肺病，手足重，皮毛粗涩，脊痛咳嗽。故曰∶
远唾不如近唾，近唾不如不唾。
唾液为醴泉，聚流为华池，散为津液，降为甘露，溉脏润身。宣通百脉，化养万神。肢节毛
发，坚固长春。
人骨节中有涎，所以转动滑利。中风则涎上潮，咽喉滚响。以药压下，俾归骨节可也。若唾
其涎，时间快意，枯人手足，纵活亦为废人。
小儿惊风，亦不可唾涎也。风涎急塞，有人喜唾，液干而体枯。遇至人，教以回津之法，久
而体复润。盖人身以津液为本，在皮为汗，在心为血，在肾为精，在口为津，伏脾为痰，在眼为
泪。曰汗曰血，曰泪曰精，出则皆不可回。唯津唾则独可回，则生意又续矣。津液者，吾身之宝。
《金丹诀》曰∶宝聚则为富家翁，宝散则为孤贫客。
广成子曰∶无劳尔形，无摇尔精，乃可以长生。所谓无劳者，非若饱食坐卧，兀然不动，使
经络不通，血气凝滞。但不必提重执轻， 终日，无致精力疲极则妙矣。
庄周曰∶人有畏影恶迹而走，举足愈多，走愈疾，而影不离身，自为尚迟，疾走不休，绝力
而死。不知处阴以休影，处静以息迹，愚亦甚矣。
书云∶勇于敢则杀，勇于不敢则活。盖敢于有为则杀身，不敢有为则活其身也。
起居不节，用力过度，则脉络伤。伤阳则衄，伤阴则下。
起居不时，饮食不节者，阴受之，而入五脏，填满 塞，为飧泄，为肠 。疾风虚邪者，阳
受之，而入六腑，身热不得卧，上为喘呼。
精者，神之本；气者，神之主；形者，气之宅。神太用则歇，精太用则竭，气太劳则绝。
甚劳则喘息汗出，损血耗气。
The True Man said: Cultivate the habit of not spitting on the ground. The saliva in the mouth is the "Golden Elixir and Jade Nectar." If one can refrain from spitting all day, constantly holding it in the mouth and swallowing it, the essence and qi will flow continuously, and the face and eyes will shine with radiance.
Ancient texts state: Those who cultivate their nature do not spit far away. Spitting far away damages both essence and qi; over time, it leads to Lung disease (Lung disease), manifesting as heaviness in the hands and feet, rough and dry skin and hair, back pain, and coughing. Therefore, it is said: Spitting far is inferior to spitting near; spitting near is inferior to not spitting at all.
Saliva is called the "Sweet Spring" (Li Quan). When gathered and flowing, it becomes the "Splendid Pool" (Hua Chi); when scattered, it becomes body fluids (Jin Ye); when descending, it transforms into sweet dew, irrigating the Zang organs and nourishing the body. It unblocks the hundred vessels, transforming and nurturing the myriad spirits. It makes the limbs, joints, hair, and nails firm and eternally youthful.
There is saliva (Xian) within the human bone joints, which allows for flexible and smooth movement. In cases of Wind-Stroke (Zhong Feng), this saliva surges upward to the throat, producing a gurgling sound. Medication should be used to suppress it, allowing it to return to the bone joints. If this saliva is spat out, although it may bring temporary relief, it causes the hands and feet to become withered; even if one survives, they will become disabled.
In cases of infantile convulsions (Infantile Convulsion), one must not spit out the saliva. If wind-phlegm is urgently obstructing, some people like to spit out saliva, leading to dryness of body fluids and emaciation of the body. Upon meeting a master, they are taught the method of returning saliva; over time, the body regains its moisture. This is because the human body takes body fluids as its root: in the skin, it manifests as sweat; in the Heart, as blood; in the Kidney, as essence; in the mouth, as saliva; latent in the Spleen, as phlegm; in the eyes, as tears. Sweat, blood, tears, and essence, once expelled, cannot be recovered. Only saliva can be recovered, thereby continuing the vitality. Body fluids are the treasures of our bodies.
The *Jin Dan Jue* (Secrets of the Golden Elixir) states: Gathering treasures makes one a wealthy elder; scattering them makes one a lonely pauper.
Guangchengzi said: Do not labor your form, do not shake your essence, and thus you may attain long life. By "not laboring," it does not mean sitting or lying down after eating, remaining rigidly motionless, causing the meridians to be blocked and blood and qi to stagnate. It simply means avoiding lifting heavy objects or engaging in frivolous activities, doing so throughout the day without exhausting one's energy to the extreme.
Zhuangzi said: There are those who fear their shadows and hate their footprints, so they run. The more they lift their feet, the faster they run, yet the shadow remains attached to them. Thinking themselves still too slow, they continue running until they die of exhaustion. They do not know that resting in the shade eliminates the shadow, and resting in tranquility stops the footprints. How foolish this is!
Ancient texts state: He who dares to act aggressively dies; he who dares not to act aggressively lives. Generally, daring to engage in active interference leads to self-destruction, while refraining from such actions preserves one's life.
If daily routines are irregular and effort is excessive, the collaterals are injured. Injury to the Yang collaterals results in epistaxis (Nü); injury to the Yin collaterals results in lower bleeding (Xia).
If daily routines are untimely and diet is unregulated, the Yin aspect is affected. Pathogens enter the Five Zang organs, filling and blocking them, leading to undigested diarrhea (Sun Xie) and intestinal disorders. Exposure to violent winds and deficient evils affects the Yang aspect. Pathogens enter the Six Fu organs, causing fever and inability to lie down, progressing upward to wheezing and calling out.
Essence is the root of Spirit (Shen); Qi is the master of Spirit; Form is the residence of Qi. Overuse of Spirit leads to exhaustion; overuse of Essence leads to depletion; overwork of Qi leads to severance.
Severe labor causes panting and sweating, damaging blood and consuming Qi.