《養性延命錄》

This passage primarily discusses methods for nurturing life and prolonging longevity through regulating diet and breathing, integrating concepts from the Shennong Jing (Classic of the Divine Farmer) and the Daode Jing (Classic of the Way and Virtue).

The Shennong Jing states: Those who consume the five grains become intelligent and wise; those who ingest mineral-based elixirs (such as the "Five Minerals Powder" in alchemy) maintain youthful, radiant skin; those who consume lingzhi mushrooms extend their lifespan; and those who cultivate and absorb the primordial Qi (vital energy) of heaven and earth cannot be buried by the earth nor killed by heaven. Thus, those who understand the art of ingesting elixirs can live as long as heaven and earth.

The Hunyuan Dao Jing introduces the concept that "the valley spirit never dies." Heshang Gong explains: "Valley" here means nourishment. If one can nourish the spirits of the five organs, they will not perish. The "spirit" here refers to the Jing-Qi (essence-energy) stored in the five organs: the liver houses the hun (ethereal soul), the lungs house the po (corporeal soul), the heart houses the shen (spirit), the kidneys house the jing (essence), and the spleen houses the zhi (will). If the five organs are damaged, these five spirits will depart the body. This is what is called the "Mysterious Feminine" (Xuanpin)—the secret of immortality lies in this source of life.

"Xuan" (Mysterious) represents heaven and corresponds to the human nose; "Pin" (Feminine) represents earth and corresponds to the mouth. Heaven nourishes humans through the five pure Qi (energies of the Five Phases), which enter through the nose and are stored in the heart. These light and refined essences form the shen (spirit), wisdom, voice, and the five virtues (benevolence, righteousness, propriety, wisdom, and sincerity). The corresponding spiritual entity is called hun (ethereal soul), which is Yang in nature and connects to heaven through the nostrils. Earth nourishes humans through the five flavors (sour, bitter, sweet, pungent, and salty), which enter through the mouth and are stored in the stomach. These heavy and turbid substances form the body, bones, flesh, and the six emotions (joy, anger, sorrow, happiness, love, and hatred). The corresponding spiritual entity is called po (corporeal soul), which is Yin in nature and connects to earth through the mouth. Thus, the nose is called "Xuan," and the mouth is called "Pin."

This "Gate of the Mysterious Feminine" (the nose and mouth) is the root of heaven and earth, the passage through which primordial Qi flows. When breathing, one should make it long, subtle, almost imperceptible, and use the Qi gently and naturally, avoiding forceful or hurried exertion.

The Hunyuan Daode Jing states: A person's birth refers to the emergence of desires from the five organs, at which time the hun and po are settled. Death occurs when desires congest the heart, leading to the dissipation of Jing-Qi and the confusion of the shen. There are thirteen paths to life and thirteen paths to death, referring to the nine orifices (two eyes, two ears, two nostrils, mouth, anterior and posterior yin) and the four limbs. To live properly, one must: not let the eyes gaze recklessly, the ears listen indiscriminately, the nose smell carelessly, the mouth speak thoughtlessly, the hands grasp greedily, the feet wander aimlessly, or the Jing-Qi leak wastefully. The manifestations of death are the exact opposite. Many people, though alive, behave in ways that hasten their own demise. Why? Because they constantly act contrary to the Dao.

This passage elucidates the core philosophy of Daoist longevity cultivation, emphasizing the importance of following natural principles and knowing contentment and moderation.

Those who excessively pursue immortality often meet premature death precisely because their obsession with prolonging life violates natural laws. Straying from the Dao (the Way), defying innate nature, and acting recklessly disrupt the natural course of life. Those who truly understand longevity cultivation walk on land without encountering rhinos or tigers and enter battlefields without being harmed by weapons. Rhinos find no place to gore them, tigers no place to claw them, and weapons no place to strike them. Why? Because they never place themselves in dangerous situations.

Zhuangzi, in his discourse on nurturing life, states: "Our lifespan is finite" (Xiang Xiu explains that each person's endowed life has its limits), while knowledge is boundless. Ji Kang remarks: "Desires arising without deliberation stem from innate nature, whereas perceptions formed through cognition are products of wisdom. Those driven by innate nature, upon encountering things, feel content and cease craving, while those influenced by wisdom never know satisfaction." Thus, the troubles of the world often arise from the afflictions of wisdom rather than innate nature. To pursue infinite knowledge with finite life is perilous indeed.

Those who truly comprehend the essence of life do not engage in actions detrimental to it (Xiang Xiu says these are acts beyond innate nature). Those who understand the essence of destiny do not use wisdom to force what cannot be achieved (Xiang Xiu says these are matters decreed by fate). Zhang Zhan explains: "Life follows its own laws; to overreach beyond one’s natural lot is to chase the infinite with the finite."

Liezi says: "In youth, avoid excessive toil; in prime years, refrain from contentious striving; in middle age, be content with simplicity; in old age, embrace tranquility and few desires—keeping the mind at ease and the body moderately active—this is the method of nurturing life." The waxing and waning of Qi (vital energy) and blood in the human body correspond with heaven and earth and resonate with all things (Zhang Zhan notes that the human body connects with the Qi of Yin-Yang). Maintaining mental serenity and eliminating delusions—this is the true path of longevity cultivation. When harmony is sustained, the spirit does not scatter.

The Hunyuan Miaozhen Jing (Scripture of the Mysterious Perfection of Primordial Chaos) states: "People often turn away from the Dao, but it is not the Dao that abandons them; people often lose their lives, but it is not life that leaves them. Therefore, those who nurture life must be cautious not to deviate from the Dao, and those who cultivate the Dao must be careful not to harm life." Let the Dao and life guard each other, and let life and the Dao preserve one another (this is the essence of Huang-Lao teachings).

The Daoist master Xuan Shi expounded: The natural operation of heaven and earth ceaselessly nourishes all things, while human life patterns lead to the depletion of form and spirit (shen). When spirit transforms into vital essence (jing), and this essence becomes exhausted, aging ensues. Though the physical form can generate essence, this essence ultimately originates from spirit. By not carelessly expending one's life force, one may harmonize with the celestial Dao; by preventing random transformations of spirit, one may resonate with the Great Way.

Xuan Shi further explained: Cultivation methods relying on physical transformation (such as corpse-liberation transcendence techniques) cause the separation of spirit from form—like seabirds transforming into clams with the tides, subject to the alternating influences of yin and yang qi. While qi-transformation practices can prolong life, excessive attachment to physical transformation proves perilous.

Yan Junping's Laozi Zhi Gui states: Let your heart-mind wander in empty tranquility, focus your will on the subtle and profound, relinquish all desires, and return to the state of wuwei (non-action). Only thus can one comprehend life's true essence, extend longevity, and coexist eternally with the Dao.

The Scripture of Great Abundance records a question: Since all life originates from emptiness and is ultimately nurtured by yin-yang qi—with forms sustained by heaven-earth and nourished by food-breath—why do differences in wisdom, strength, and lifespan exist? The answer reveals: While physical and intellectual disparities are innate, bodily constitution and lifespan depend on human effort. Though celestial Dao operates spontaneously, human dao permits self-mastery. Those with abundant primordial qi (yuanqi) in gestation, sufficient nourishment during nursing, dietary moderation in growth, and controlled sensory desires in adulthood achieve robust longevity; the opposite leads to frailty and premature death. When innate abundance combines with postnatal cultivation, lifespan becomes immeasurable.

The Mechanisms of the Dao clarifies: Human longevity isn't predetermined—its curtailment stems from neglecting cultivation: improper diet, excessive desires, and violating yin-yang principles disturb the spirit, exhaust vital essence, and spawn countless ailments, preventing fulfillment of natural lifespan.

The Imperial Signs from the River Chart documents: Violating seasonal rhythms invites calamity, while harmonizing with solar terms brings blessings. Residing on high mountains in spring-summer and dwelling in low valleys during autumn-winter accumulates fortune and longevity.

The Jade Records from the Luo Writings preserves ancient healing wisdom: Blend sweet celestial springs with primordial qi nourishment; ingest medicines neither bitter nor pungent but pleasantly sweet—these nourish bodily fluids to fortify the five viscera, strengthen heart-lungs, and grant lifelong freedom from illness.

The Confucius Family Sayings observes: Meat-eaters often become fierce as tigers, while qi-cultivators attain transcendent wisdom and longevity akin to immortals.

The spiritual turtle, a creature that does not consume grains yet lives long and attains supernatural wisdom, stands in contrast to humans who, though gaining intelligence by eating grains, often have shorter lifespans. Abstaining from grains can lead to longevity and mental clarity. The key lies in allowing the breath to flow naturally and avoiding chaotic thoughts.

Ancient texts state: The more varied one's diet, the more susceptible one becomes to illness and the invasion of pathogenic influences. Eating less leads to a brighter mind and longer life, while overeating clogs the spirit and shortens one's years. The Grand Historian Sima Tan observed: The spirit (Shen) is the root of life, while the body is its vessel. Overusing the spirit exhausts it, and overexerting the body leads to death. If both spirit and body decline prematurely, how could one hope to match the longevity of heaven and earth? Such a thing has never been heard of. Human life depends on the spirit, which in turn relies on the body. Once spirit and body separate, death occurs—there is no return from death, no reunion after separation. This is why the sages placed such importance on the art of nurturing life.

The general principle of life cultivation is this: Even if one cannot fully grasp its essence, simply remembering to act contrary to worldly habits will unconsciously lead one onto the right path, achieving most of its benefits. How could those who sincerely seek to nurture life overlook this? The Xiaoyou Jing (Scripture of Minor Existence) teaches: Practice the "Twelve Fews"—fewer thoughts, fewer distractions, fewer desires, fewer tasks, fewer words, fewer laughs, fewer sorrows, fewer pleasures, fewer excitements, fewer angers, fewer preferences, and fewer aversions. These twelve form the foundation of life cultivation. Conversely, the "Twelve Excesses" harm life: excessive thinking depletes the spirit, excessive distractions scatter the will, excessive desires erode resolve, excessive tasks fatigue the body, excessive speech invites conflict, excessive laughter injures the organs, excessive sorrow breeds fear, excessive pleasure leads to indulgence, excessive excitement causes confusion, excessive anger disrupts Qi and blood, excessive preference creates obsession, and excessive aversion brings constant misery. Failing to eliminate these twelve excesses means losing the root of life. Those who can abstain from them approach the realm of perfected beings (Zhenren).

Broadly speaking: The extravagant and idle often live long, while the stingy and diligent die young—this stems from differences in attitude toward life. Farmers enjoy longevity while the children of the wealthy perish early, demonstrating the consequences of desire. Hermits suffer few illnesses while wanderers face many calamities, showing the distinction between simplicity and complexity. Thus, ordinary people chase fame and profit, while Daoist practitioners seldom engage in such pursuits. Hu Zhao advised: Let not your eyes behold improper sights, your ears hear foul speech, your nose smell rank odors, your mouth taste pungent flavors, nor your heart scheme deceit—all these damage the spirit and shorten life. Moreover, habitual sighing, whether morning or night, invites malign influences. Ordinary people cannot avoid desires entirely, yet they must not...

This scripture primarily discusses methods for nurturing life and prolonging longevity. The core philosophy emphasizes maintaining inner tranquility, reducing distracting thoughts, calming the body, and eliminating disturbances that agitate the spirit (Shen). These are essential practices for preserving one's vital essence. The Huangting Jing (Scripture of the Yellow Court) mentions that saliva in the mouth is like clear jade pool water—it nourishes the body's foundational energy. By diligently cultivating this method, one can achieve longevity. The phrase "natural nourishment through eating and drinking" refers to the precious fluids (Huachi, "Splendid Pool") in the mouth. Swallowing them through proper breathing techniques can eliminate hunger.

Laojun and Master Yin explain in the Neijie (Inner Explanation) that accumulated saliva resembles sweet spring water (Liquan, "Sweet Spring"), pooling like jade nectar. When it flows, it forms the Splendid Pool (Huachi); when dispersed, it becomes vital essence (Jing-Qi); and when descending, it transforms into heavenly dew (Ganlu). Thus, the mouth is the Splendid Pool, containing the Sweet Spring. Rinsing and swallowing this fluid moistens the five viscera, nourishes the entire body, unblocks the blood vessels, and revitalizes all aspects of the spirit (Shen). Even the growth of limbs and hair depends on it.

The Zhongjing (Central Scripture) states that calm individuals enjoy long lives, while restless ones die prematurely. However, mere stillness without understanding life-nurturing methods may shorten life, whereas even an active person who masters these techniques can extend their years. The key lies in grasping proper cultivation methods—whether one is naturally serene or energetic, both can achieve health preservation.

Han Rong and Yuan Chang note that alcohol, as the refined essence of the Five Grains, has an exquisite flavor but harms the body. Beautiful things are often hard to control yet easy to overindulge in—a crucial caution for life cultivation. Shao Zhongzhan observes that while the Five Grains satisfy hunger, they cannot prolong life; bitter medicines heal illnesses and extend years but are unpalatable. Ordinary people chase delicious flavors, while Daoist practitioners value life-extending remedies, however bitter.

In the Suwen (Basic Questions), the Yellow Emperor asks Qibo: "Why did the ancients live a hundred years without physical decline?" Qibo replies that those who understood the Dao of life cultivation followed the laws of Yin-Yang, practiced bedroom arts with moderation, maintained dietary discipline, kept regular routines, and avoided exhaustion. Thus, they preserved their spirit (Shen) and lived to a hundred. Modern people, however, drink alcohol like water, treat recklessness as normal, engage in intercourse while intoxicated, exhaust their essence (Jing) through indulgence, chase fleeting pleasures, and live without discipline—hence aging by fifty.

Finally, Laojun declares that human life rarely exceeds a century, but those who practice restraint and nourishment can extend it. Like lamp oil, frugal use makes it last longer.

This passage expounds the principles of self-cultivation. Ordinary people often speak loudly, while the wise speak softly; the masses are constantly troubled by worries, while the wise seldom dwell on trivial matters; others easily become irritable, while I maintain inner peace. Not allowing worldly affairs to disturb one's spirit, not pursuing fame and fortune, maintaining a naturally serene mind with abundant vital energy—this is the true path to longevity.

The celestial deities and earthly spirits silently observe human conduct: even whispered thoughts are heard by spirits, and deeds violating cosmic principles are recorded in the underworld. Public good deeds receive worldly rewards, while secret virtue earns divine protection; overt wrongdoing faces legal punishment, and hidden misdeeds inevitably incur supernatural retribution. Like shadows following forms and echoes responding to sounds, karmic consequences are unfailingly precise.

Laozi said: When virtuous people encounter misfortune, they're bearing ancestral karma; when wrongdoers receive blessings, they're consuming ancestral merit. Master physicians observe: Most people fail to achieve longevity due to indulging desires, contentiousness, and chasing fame—leading to depleted Qi and blood, blocked meridians, with vital energy receding while pathogenic factors invade, like dousing flames with seawater or blocking streams with mountain floods.

Peng Zu's longevity secrets teach: Cultivating the Dao requires purifying the heart and minimizing desires—not obsessing over material comforts, gains and losses, or social judgments. With tranquil spirit, moderate movement, and breath regulation practices (embryonic respiration), one may live a thousand years. For true immortality, one must additionally consume celestial elixirs (supreme medicines).

Zhong Changtong advises: Moderate the seven emotions and six desires—maintain a mind that thinks without obsession, a mouth that speaks without excess, and a body that avoids excessive comfort. Be content yet adaptable, enjoy pleasures without addiction. Peng Zu and Laozi achieved extraordinary longevity precisely by embodying these principles.

Chen Ji adds: Most illnesses and premature deaths stem from improper diet. The harm of overeating surpasses even that of sensual indulgence. While sensory pleasures can be abstained from completely, food cannot—making dietary moderation all the more crucial.

This classic text on nurturing life discusses the principle of moderation in daily living. Prolonged overindulgence in food and drink harms the body, while measured consumption brings benefit. Zhang Zhan (an Eastern Jin dynasty health preservation master) observed that those who suddenly lose high status—even without external pathogenic factors—will suffer internal spiritual damage leading to physical collapse, as if ice and fire were warring within their bodies, ultimately resulting in fatal vomiting of blood. Those who plummet from wealth into poverty, even without contracting illness, will develop withered skin, protruding bones, and become hunchbacked from chronic ailments.

The text reveals how both poverty and wealth injure the human body like shifting political fortunes, leaving physical traces of suffering. Movement wards off cold, while stillness resists heat—only by balancing activity and tranquility can one achieve longevity. Only when essence (Jing) and vital energy (Qi) remain pure and undisturbed can they harmonize with the Dao (the Way). Zhuangzi's description of "the true person dreaming no dreams in sleep" and Shenzi's saying "no daytime affairs means no nighttime dreams" both express this principle. A certain Daoist Zhang lived over 120 years in robust health by following these precepts: avoid prolonged walking, sitting, lying, looking, or listening; abstain from gluttony and heavy drinking; guard against excessive worry and grief. Those who master this balanced approach are destined for long life.

The Scripture of Immortals (Xianjing) declares "my life depends on myself, not heaven"—yet foolish people fail to comprehend this. All diseases stem from indulging desires while neglecting self-care, like rotten wood snapping in wind or crumbling riverbanks collapsing at water's touch. Even without elixirs, one can live 100-200 years simply by preserving essence-energy (Jing-Qi) and restraining passions.

Zhang Zhan's Compendium of Life Nurturing distills ten essentials: cherish spiritual vitality (Shen), safeguard primordial Qi, maintain physical form, practice Daoyin (health exercises), mind speech, moderate diet, regulate sexual activity, transcend worldly concerns, use medicine wisely, and observe taboos. The Green Ox Daoist (Feng Junda) particularly warned: excessive pleasure shortens life. Never strain beyond physical capacity, though moderate labor surpasses idleness. Maintain gentle activity throughout the day, resting when fatigued and resuming movement after—this rhythm achieves the same effect as Daoyin practices. Just as flowing water stays fresh and door hinges avoid worms through constant motion, so too does the human body thrive through balanced movement.

This passage from a classic text on nurturing life discusses fundamental health principles for daily living. The Daoist master Qingniu Daoshi (also known as Feng Junda) emphasizes two key points: keeping the body active and maintaining dietary moderation. Movement shouldn't be excessive, nor should dietary restrictions become extreme. One should reduce greasy and strongly flavored foods, limit salt and sour tastes, minimize excessive thinking, restrain emotional extremes, avoid overexertion, and practice sexual moderation. Emperor Wu of Han found these methods remarkably effective when put into practice.

Pengzu, the legendary longevity figure, observed that even without specialized cultivation methods, proper care typically allows one to live 120 years. With some understanding of life-nurturing principles, 240 years becomes possible, and when combined with herbal supplements, one might even reach 480 years. Ji Kang similarly noted that with proper regulation, exceptional cases might attain a thousand years, while ordinary practitioners could expect a century.

The essence of nurturing life lies in avoiding harm to the body. Keep warm in winter and cool in summer, harmonizing with seasonal changes to maintain physical comfort. Pengzu specifically warned: overly thick clothing and excessively soft bedding invite wind ailments; indulging in rich cured meats and drunkenness causes food stagnation; obsession with sensual pleasures and maintaining multiple concubines depletes vital Qi (vital energy); though pleasing to the ear, lascivious music leads to dissipation; constant hunting induces mania; scheming against others and bullying the weak invites calamity. Even sages can err—nurturing life is like handling fire or water: improper measure turns benefit into harm.

Pengzu further cautioned: reckless use of medicines without understanding life-nurturing principles damages Qi and blood, leading to flaccid muscles and hollow bones. When internal weakness develops first, external pathogens (wind, cold, alcohol, and lust) find their opportunity. If the body remains fundamentally strong, how could illness take hold?

Immortals have identified three cardinal prohibitions: the gravest offense is indulging desires, the greatest misfortune stems from greed, and the deepest fault lies in slander. These three roll forward like wheels of calamity—lightly they harm the body, severely they ruin households. For longevity with minimal illness, observe these precautions: don't excessively deplete Jing (essence) and Qi, avoid overheating that damages marrow, guard against chill that harms muscles, refrain from careless spitting that wastes bodily fluids, and abstain from sudden loud shouting.

This health cultivation classic primarily discusses how to nurture body and mind through daily diet and lifestyle to prolong life. The core philosophy centers on the principle of "moderation," emphasizing that nothing should be done to excess.

Regarding emotional management, the text warns against prolonged states of fear, grief, or anger, as these negative emotions deplete one's Shen (spirit). Only by maintaining inner peace and stability can one achieve the goal of longevity through cultivation.

Several key dietary principles are outlined:

First is dietary restraint. One should eat until seventy to eighty percent full, avoiding overindulgence. Daoist practitioners (Zhenren, "Perfected Persons") recommend eating when slightly hungry and drinking when slightly thirsty to prevent excess. After meals, moderate activity like walking a few miles aids digestion, while lying down immediately after eating may cause food stagnation and illness.

Second is dietary regularity. Frequent small meals are preferable to occasional large ones. The text describes this state as "often feeling slightly hungry when full, and slightly full when hungry"—maintaining a balance between satiety and hunger.

Third is eating sequence. Begin with hot dishes, proceed to warm ones, and finish with cool foods. If no cool dishes are available, drinking one or two sips of cold water benefits digestion.

Fourth is dietary hygiene. Before eating, gently inhale and swallow once or twice to prevent illness. Excessively hot food harms bones, overly cold food damages organs, scalding food burns the mouth, and icy food injures teeth.

Fifth is post-meal care. After eating, walk slowly and avoid immediate loud speech or excessive water intake, as these disrupt Qi and blood circulation. Drunkenness must be avoided as it scatters the Shen.

Seasonal dietary guidelines are also provided:

Spring favors pungent flavors, summer suits sour tastes, autumn benefits from bitter foods, and winter aligns with salty flavors—all in moderation. Specific warnings: reduce liver intake in spring, heart in summer, lungs in autumn, and kidneys in winter, while limiting spleen consumption year-round. These follow Chinese medical Five Phases theory, preventing excessive nourishment of corresponding organs each season.

Finally, a practical technique is shared: massaging the abdomen with palms several hundred times after meals—a method transmitted by the Green Ox Daoist (a renowned Daoist health master)—greatly aids digestion.

This passage primarily discusses various dietary taboos and precautions for health preservation in Daoist practice:

Eating should follow natural rhythms. Swallows should not be consumed, as entering water may attract attacks by flood dragons and snakes, and killing living creatures should be avoided. Lying down immediately after overeating causes back pain. Alcohol should not be consumed excessively - vomiting from overdrinking harms the body. When sleeping intoxicated, avoid facing wind or using fans, as these damage vitality. Honey should never be eaten with plums, as this injures the five viscera.

Forcing food while intoxicated may cause toxic ulcers. Sexual intercourse when drunk or overfed leads to darkened complexion and coughing in mild cases, or visceral/meridian damage and even death in severe cases. Warm, easily digestible foods are preferable - cooked over raw, modest portions over excess. Horseback riding after meals may cause heart ailments. Drinking water too quickly induces qi disorders or edema.

Never consume dairy products with vinegar - this creates bloody phlegm or hematuria. Washing one's face immediately after sweating from hot food dulls the complexion and creates a crawling sensation. Rinsing with vinegar water after hot meals causes halitosis and gum bleeding. Food contaminated by horse sweat or hair is harmful. Chicken, rabbit, and dog meats must never be mixed.

Dried meat soaked in thatch-roof runoff (called "depressed jerky") is toxic. After prolonged fasting, sudden overeating causes indigestion. Sleeping uncovered after overeating may induce fatal cholera. Recovering patients must avoid raw fish to prevent unceasing diarrhea. Never drink dairy with raw fish - this breeds parasites. Rabbit meat with dried ginger causes cholera.

Avoid exclusively eating the fattiest meat portions - as everyone covets these, they cause qi stagnation and illness. Empty stomachs should not consume raw fruit - this creates chest fever, bone steaming (consumption-like symptoms), and ulcers. Food contaminated by sweat dripping from copper vessels causes sores. Eating hot food before cold pathogens disperse induces gout.

Washing with cold water while heated from alcohol causes ulcers. Washing hair after meals triggers headaches. Buckwheat with pork (beyond three meals) causes fever disorders. Meat jerky stored in glutinous rice jars induces chest oppression. When roasting jerky - if flames dance wildly while meat remains still, or if torn meat shows tangled fibers - consumption may cause illness or death. The pearl-like nodules in sheep spleen ("suspended sinews") are inedible.

This passage on health preservation taboos outlines various precautions in daily life, primarily categorized into dietary restrictions and lifestyle prohibitions:

Regarding diet:

Consuming moldy, spoiled, or dampened food allows invisible pathogenic factors to invade the body, causing acute conditions like abdominal distension. Avoid alcohol during recovery from illness, as it may induce chest and diaphragm heat. Similarly, refrain from eating raw dates, mutton, and raw vegetables post-recovery, as they damage complexion with lasting effects. Never combine hot oil pancakes with cold vinegar or sour fermented water—this risks voice loss. Raw onions and honey are toxic when mixed; water-soaked dried meat breeds toxins; improperly sun-dried meat jerky is unsafe; mutton liver harms the heart when paired with Sichuan pepper; cucumbers with mutton generate internal heat.

Concerning daily habits:

Excessive eye use depletes blood; prolonged lying weakens Qi (vital energy); extended standing damages bones; over-walking strains tendons; constant sitting atrophies muscles. Overthinking, chronic worry, rage, extreme joy or grief, intense desires, obsessive attachments, temperature extremes, and failure to balance Yin-Yang all harm health. Sexual intercourse should incorporate Daoyin techniques (a breathing and movement-based health practice). Avoiding these harmful behaviors while mastering Yin-Yang harmonization constitutes the path to longevity.

Key observations:

Extreme excitement dissipates primordial Qi; excessive sorrow stagnates Qi flow. Lustful indulgence depletes Jing (essence) causing fatigue; eye strain impairs vision; oversleeping breeds restlessness; gourmandizing leads to diarrhea. Ordinary people chase sensory pleasures unaware that primordial Qi is foundational. Daoist practitioners recognize how flavors cause illness—hence dietary moderation—and master methods of "ingesting primordial Qi" (gathering cosmic essence through breathwork) to consolidate vital energies. Not swallowing saliva depletes bodily fluids; thus "drinking from the Sweet Spring" (saliva swallowing) and absorbing primordial Qi form the basis of longevity.

Additional prohibitions:

Frequent bathing brings misfortune, as does couples bathing together. Avoid intercourse immediately after bathing, when overfed, after long journeys, or during exhaustion—these invite illness. Men shouldn’t sleep facing north, which disrupts Shen (spirit) and causes forgetfulness. Never stand over wells—a timeless taboo. Don’t sit or nap against towering walls.

Note: "Daoyin" refers to ancient Qi-regulating exercises; "ingesting primordial Qi" means absorbing cosmic energy through specialized breathing; "Sweet Spring" in Daoist practice denotes saliva as an elixir.

This classic text on health preservation primarily discusses daily life taboos and precautions, advising people on how to avoid illness. It can be divided into several key aspects:

Regarding protection from wind and cold: Avoid abruptly removing clothes after sweating, as this may lead to hemiplegia; refrain from exposing wet hair to wind after washing, which could cause wind-induced headaches; never warm yourself by fire immediately after catching cold, as this may trigger dizziness and blurred vision.

Concerning daily habits: Don't let your feet dangle unsupported while sleeping, as prolonged practice may cause back and leg pain; never expose sweaty feet to cold water to prevent joint pain; avoid speaking loudly right after waking to protect your Qi (vital energy); in winter keep feet warm and head cool, while in spring and autumn both head and feet should remain cool.

About dietary hygiene: Don't eat immediately after crying to prevent Qi disorders; when overheated during travel, avoid washing your face in river water to prevent dark facial spots; never drink cold water when feverish and sweating to protect digestion; before viewing corpses, drink wine and eat garlic to guard against toxic Qi.

Sleeping prohibitions: Never place a stove or oil lamp near your head while sleeping to prevent dizziness; avoid covering your head or sleeping with open mouth, as this may cause chronic thirst and poor complexion; when having nightmares, don't light lamps but wake the person gently.

Additional precautions: Women shouldn't squat on stoves; children mustn't point at the moon to prevent sores behind ears; postpartum women should avoid contact with those having body odor.

These represent ancient health preservation masters' accumulated wisdom for daily disease prevention, emphasizing harmony with natural laws and attention to life details for maintaining wellbeing.

Essential Guidelines for Nourishing Life and Prolonging Longevity:

Regarding sleep taboos: Avoid sleeping directly beneath windows or beams, as this disturbs the Shen (spirit). During spring and summer, face east while sleeping; in autumn and winter, face west for optimal health benefits. Men should observe this urination principle: sit when emptying the bladder on an empty stomach, but may stand after meals to prevent illness. The most nourishing sleep posture is the fetal position with bent knees, which preserves Jing (essence). Change positions during sleep, and maintain quiet conversation without loud noises.

Seasonal routines: Spring suits early retirement and rising. Summer and autumn permit slightly later bedtime but still require early rising, while winter demands early sleep and late rising. However, never rise before the rooster crows nor after sunrise. Winter particularly requires conserving Yang Qi as heaven and earth store it internally—excessive labor causing sweat depletes this vital energy.

Daily precautions: Never expose wet hair to wind or tie damp hair before sleep, lest it cause headaches, dizziness, hair loss, facial swelling, toothache, or deafness. Damp or sweat-soaked garments worn too long invite skin diseases and itching.

Laojun's (deified Laozi) blessing method: At dawn on New Year's Day, kneel facing the northeast direction in your courtyard and recite: "Disciple [name] gratefully receives the Dao's grace, praying the Supreme Pure Mystic Gate (Taixuanmen) bestows blessings for health in the new year." Repeat thrice, regardless of gender. Consistent practice extends longevity.

Ancient longevity secrets: The Mystic Maiden (Xuan Nü) transmitted methods to clarify the heart and brighten the Shen. The Prince of Huainan emphasized proper worship of the Kitchen God (Zaoshen) to align with true Dao and nurture life. Essential Neidan (internal alchemy) techniques from scriptures include visualizing an egg-sized Qi sphere at the heart—red within and yellow without—to repel pathogens and prolong life. To ward off evil spirits, imagine a peck-measure sized flame illuminating your body, making you invulnerable to epidemics. At night, envision red Qi enveloping your form while white Qi protects internal organs as shielding layers.

Laojun's prohibitions for cultivators include "Five Rebellions and Six Inauspicious Acts." The rebellions: 1) Relieving oneself facing west, 2) Facing north, 3) Toward the sun, 4) Toward the moon, 5) Excreting while looking skyward. The inauspicious acts: 1) Naked nighttime rising, 2) Morning anger, 3) Cursing toward the stove, 4) Kicking fires, 5) Daylight marital relations, 6) Resenting one's master—all attract misfortune.

Upon waking each morning, ordinary people should habitually speak auspicious words to receive heavenly blessings. Avoid pessimistic expressions like "what should I do?" and refrain from singing while lying down, as these behaviors invite misfortune. Pay special attention to these taboos: never sing when first reclining, don't eat while lying prone on the bed, and avoid tapping bowls with chopsticks—all of which bring inauspicious energy.

Within the human body reside two auditing deities: the Controller of Yin Affairs (responsible for underworld matters) resides by the left teeth, recording misdeeds to report to the celestial court; the Controller of Executions (overseeing life and death) dwells by the right teeth, reporting harmful speech to the Director of Destinies (the lifespan deity). When transgressions accumulate to fullness, one's longevity diminishes. The tongue functions as the body's weapon—both virtue and vice issue from the mouth—hence Daoist practice particularly emphasizes guarded speech.

Essential longevity techniques include: swallowing "Jade Spring" (saliva) seven times during each of seven daily periods (cockcrow, dawn, noon, afternoon, dusk, evening, and midnight) to prolong life and dispel illness. Frequent hair-combing (over a thousand strokes) prevents graying; morning and evening tooth-knocking wards off decay; regular nail-trimming strengthens tendons. Mirror-gazing aids "form preservation" (maintaining physical health), helping body and spirit (Shen) remain united. However, excessive focus on appearance renders mirror use counterproductive.

On specific auspicious dates (the first day of the first month, second day of the second month, third day of the third month, etc.—twelve designated days yearly), bathing with wolfberry-infused water enhances radiance and promotes longevity. During lunar eclipses, actively saving lives accumulates merit equal to heaven and earth. Sages abhor killing—aligning with the cosmos' life-nourishing virtue (De) attracts blessings. Share fortunate dreams but remain silent about ominous ones; such mental cultivation extends lifespan.

(Note: The referenced auditing deities—Controller of Yin Affairs, Controller of Executions, and Director of Destinies—belong to Daoism's divine bureaucracy overseeing underworld records, mortal judgments, and lifespan adjustments respectively. "Form preservation" denotes Daoist cultivation techniques for maintaining physical vitality.)

The Records of Nourishing Nature and Prolonging Life documents methods of breath cultivation (fuqi) for health preservation, emphasizing the regulation of breathing to treat illness and extend longevity. Taoist master Tao Hongjing (known as the Recluse of Huayang during the Southern Dynasties) compiled these techniques from ancient longevity practitioners.

Regarding breath regulation for healing, the Yuanyang Jing states: One should consistently inhale through the nose until the mouth fills with qi, then stir the tongue to produce saliva, moistening lips and teeth before swallowing. Swallowing qi a thousand times within a day and night yields optimal results. Simultaneously, reduce food intake—overeating causes qi counterflow and meridian blockages, which inevitably lead to illness.

The text explains: Human will commands qi, while qi forms the foundation of the body. Those skilled in life cultivation align with natural rhythms, whereas the unskilled harm their vitality. Thus, the essentials of breath regulation involve: temperance in eating, moderate physical movement, harmonizing qi and blood, and maintaining gentle, balanced motions. During practice, keep the posture upright with focused awareness, allowing internal qi to circulate vertically while spirit permeates the entire body. When the Guanyuan point (Dantian region) becomes firm and full, pathogenic qi naturally dissipates.

Peng Zu's (the legendary longevity immortal) method offers greater specificity: From dawn until noon, practice breath retention while kneeling, massaging the eyes, moving the body, swallowing saliva, and performing dozens of qi absorptions before rising. For fatigue or discomfort, combine breath-holding with daoyin exercises targeting affected areas. Visualize qi flowing like clouds through the body—from the nine orifices of the head and internal organs to the extremities and even hair follicles. This harmonizes true qi without need for acupuncture or medicine.

When treating illness, focus intention on afflicted regions: direct harmonious qi to attack headaches by concentrating on the head, or foot pain by focusing on the feet—persistence brings natural relief. For colds, use breath retention to induce sweating until chill dissipates. However, note this caution: Though breath-holding is essential for cultivation, practitioners must first understand its principles and practice only on an empty stomach. Forcing retention amid qi stagnation may cause toxic swelling, just as damming a spring brings disaster. Consuming raw meat, greasy foods, or practicing with anger and sorrow can all trigger qi rebellion.

Finally, the text cites Liu Jun'an's (Eastern Han alchemist) secret formula: Inhaling fresh qi is "consuming life"; exhaling turbid qi is "expelling death"—only through this endless cycle can longevity be achieved. Ordinary practitioners should progress gradually, maintaining slow, deep breathing from dawn till dusk, allowing qi to flow unimpeded with natural ease.

This passage explains the essential techniques of breath regulation and the cultivation of Jing (essence), Qi (vital energy), and Shen (spirit) in Daoist health preservation practices. Let me break it down section by section:

The key to breathing lies in inhaling fresh air through the nose and exhaling turbid Qi through the mouth—this is called "expelling the old and absorbing the new." The Scripture of Ingesting Qi (a classic Daoist cultivation text) states: The Dao is Qi; by preserving Qi one attains the Dao, and by attaining the Dao one achieves longevity. Shen is Jing; by preserving Jing one connects with divine illumination, and through this connection comes long life. Jing is the foundation of blood circulation and the spiritual source of bones. When Jing is depleted, bones dry up; when bones wither, death follows. Therefore, practitioners must treasure their Jing and Qi.

Timing is crucial in cultivation: the period from midnight to noon is the "vital Qi" phase (Yang energy ascending), while noon to midnight is the "waning Qi" phase. Practice is best done during the vital Qi period. The method involves lying flat with closed eyes, making an infant's fist (thumb enclosed by four fingers), holding one's breath while silently counting to two hundred, then slowly exhaling through the mouth. Gradually increase repetitions daily—this stabilizes the five organs and invigorates the spirit. Those who can hold their breath for two hundred fifty counts will experience brightness between the eyebrows (the "canopy" refers to the glabella), sharp hearing and vision, freedom from illness, and protection from pathogenic Qi.

Specific breathing techniques: Inhale gently, slowly, and continuously through the nose—this is called "long breathing." While there's only one inhalation method, there are six exhalation techniques: Chui (blowing), Hu (exhaling), Xi (sighing), He (soft exhale), Xu (hissing), and Si (whispering). Ordinary breathing follows natural rhythms, but cultivation requires adjustment: use Chui to dispel cold, Hu to release heat, Xi to calm agitation, He to regulate Qi, Xu to dissolve stagnation, and Si to relieve fatigue. However, Daoist practice generally avoids Xu and Si as these represent forced long breathing.

This method suits both genders and originates from the Scripture of Immortals (Xian Jing). Before practice, clear nasal hair—this is the "pathway for divine connection." Avoid Qi cultivation during extreme weather like storms or temperature extremes.

The medical theory explains disease origins: all illnesses stem from "five exhaustions" (five types of overexertion), which first damage the heart and kidneys before affecting the whole body. The five exhaustions are: excessive ambition, excessive contemplation, excessive mental strain, excessive worry, and excessive physical labor. These develop into "six collapses": Qi depletion, blood depletion, tendon depletion, bone depletion, Jing depletion, and marrow depletion. The six collapses then manifest as "seven damages," appearing as "seven pains" (various ailments).

This health cultivation classic primarily discusses two aspects: the causes of illness and Qi-regulating therapies, and the life-nurturing methods of Daoyin (guided stretching) and massage.

Regarding disease causation, it explains that early marriage/childbearing and excessive depletion of Jing (essence) and Qi (vital energy) lead to Qi-blood deficiency, causing various ailments. Symptoms include memory decline, emotional depression, poor appetite, dry skin, premature graying, and in severe cases, stroke-induced hemiplegia, atrophied tendons and bones, stiff joints, emaciation with shortness of breath, and lumbar-leg pain. All diseases correlate with the five zang organs (heart, liver, spleen, lungs, kidneys), requiring treatment to address root causes.

The text details specific Qi-regulating therapies for different organ disorders: for heart disease manifesting as alternating chills and fever, use the "Hu" (exhale) and "Chui" (blow) breathing methods; lung disease with chest/back distension employs the "Xu" (hiss) technique; spleen disorders causing migratory skin prickliness use "Xi" (sigh) breathing; liver ailments involving eye pain and depression utilize the "He" (exclaim) method. Emphasis is placed on focused, reverent practice—each sound must coordinate with corresponding breath vibrations. Persistent practice purportedly cures diseases and prolongs life.

The second section introduces morning Daoyin massage techniques: Before rising at dawn, knock teeth 14 times, close eyes while making fists, rinse mouth with saliva swallowed in three portions. Then hold breath to capacity before slow exhalation, repeated thrice. Next, perform "wolf-squat owl-gaze" movements—squatting like a wolf while turning the head owl-like—with coordinated breath-holding. After rising, stomp feet three times while clenching fists, alternately stretch arms upward and downward, interlace fingers to rotate the neck, then stretch legs while pushing hands forward. These exercises should be practiced morning and evening, with increasing repetitions recommended.

Special attention is given to the "Wogu" (firm grip) Daoist hand seal: curling the thumb beneath four fingers in tight fist formation. Long-term practice purportedly consolidates Jing-Qi, brightens eyes, delays aging, and repels pathogenic influences. Alternate interpretations suggest this gesture wards off ghostly intrusions. The text metaphorically describes Wogu as "closing the gates through which Hun (ethereal soul) and Po (corporeal soul) travel," considering it essential for life cultivation.

This health preservation method explains how to maintain vital essence (Jing) and prolong life through simple daily exercises. It introduces several easily performed health-preserving movements:

The human body has six bodily fluids that deplete primordial Qi (Yuanqi), listed from most to least draining: semen, saliva, tears, nasal mucus, sweat, and urine. The best preservation method is to avoid nasal discharge and spitting throughout the day. When saliva is produced, one should rinse the mouth with it before swallowing. Keeping a date pit in the mouth can stimulate saliva production (note: swallow the saliva, not the pit).

Specific exercises include: each morning, tap the teeth thirty-six times (three hundred is even better) to strengthen teeth and prevent pain; then swirl the tongue around the mouth, swallowing the accumulated saliva in three portions; next massage the Shaoyang meridian points (little finger side of the hand), rub until warm, and press gently against the eyes fourteen times to improve vision.

Upon waking, interlace fingers and pull the ears up and down while rubbing them warm fourteen times to prevent deafness; then tap teeth and swallow saliva three times, hold breath while using the right hand to pull the left ear from the crown fourteen times, then switch sides; gently lift the hair at the temples seven times, then vigorously raise both hands to lift the hair seven times to promote Qi and blood circulation in the head and prevent graying.

There's also a "dry bathing" method: rub hands warm and massage downward from the forehead to dispel pathogenic factors and improve complexion; similarly rub hands warm and massage the entire body top-to-bottom to prevent wind-cold ailments and headaches. Before sleep, rubbing the entire body can disperse wind pathogens.

Additional morning exercises: support the head with the left hand while stretching and shaking the right hand upward three times, then switch sides to eliminate sleepiness; sit facing south at dawn, supporting the thighs while shaking three times to brighten complexion; before washing upon waking, sit upright and alternately push and massage opposite thighs with each hand three times, then push forward with both hands three times, finally stretching both elbows forward three times. Also includes alternating arm stretches with bending movements.

This passage records several ancient health-preserving daoyin (导引, guiding and pulling) techniques with their specific methods and benefits:

First is the bow posture exercise: Pull a bow with your right hand (using the strength equivalent to lifting 1 hu 5 dou of grain) to your full capacity, then switch to the left hand. Next, support your body with the right hand on the ground while lifting the left hand upward toward heaven, stretching fully, then alternate sides. Then make fists with both hands and push forward forcefully twenty-one times each. Afterwards, stretch your left hand backward to grasp behind your back three times, repeating with the right hand. These movements treat fatigue in shoulders, back, arms and elbows, with better results through regular practice.

The foot exercise method: Upon waking at dawn, support your armpits with a long staff, let your left foot hang off the bed edge, and slowly stretch it with moderate force three to seven times, then repeat with the right foot. This alleviates foot qi pain, coldness in the lumbar and kidneys, and knee chill pain, with optimal results when performed three times morning and evening. Avoid practicing when full or while holding urine. Without a staff, simply keep the stretching foot off the ground while holding a support.

Hair-combing regimen: Comb your hair one thousand times morning and night to effectively dispel head wind and prevent white hair. After combing, rub the crown with salt flowers and raw sesame oil for enhanced effect - divine ointment (a health-preserving medicinal paste) being the best option if available.

Oral care: During morning ablutions, first knock the teeth together 160 times, swallowing the resulting saliva. Then rinse with clean water, scrub teeth with salt powder, hold slightly sour clear liquid for mouthwash, and finally wash both eyes with mild salt water. Avoid letting cold water enter eyes when washing the face. This method strengthens teeth and brightens vision.

Hua Tuo's health methods: Records the longevity secrets physician Hua Tuo taught disciples Wu Pu and Fan A. Hua Tuo believed the human body requires moderate movement without overexertion. Regular activity aids digestion and blood circulation, just as door pivots stay functional through constant use. Ancient immortals and Han-dynasty Daoist Jun Qian maintained joint mobility through "bear-hang and owl-gaze" daoyin exercises to delay aging. Hua Tuo's created "Five Animal Frolics" (tiger, deer, bear, monkey and bird mimicry movements) both treats illness and strengthens limbs, to be practiced whenever feeling unwell.

The Records of Nourishing Nature and Prolonging Life documents a health-preserving exercise called the "Five Animal Frolics." It involves imitating the movements of five animals: the Tiger Frolic requires crouching on all fours, leaping forward and backward while stretching the waist; the Deer Frolic involves kneeling on all fours, turning the head side to side and extending the legs; the Bear Frolic consists of lying on one's back while hugging the knees and rolling from side to side; the Monkey Frolic entails hanging the body and stretching up and down; and the Bird Frolic involves standing on one leg while extending the arms. Practitioners should exercise according to their ability until a light sweat appears, after which powder can be applied to the body. Long-term practice aids digestion, strengthens Qi (vital energy), and dispels all manner of illnesses. Wu Pu diligently practiced this method and, even in his nineties, maintained sharp hearing, clear vision, strong teeth, and an appetite akin to that of a young person.

The text also mentions key principles for health preservation: before meals, one may sit quietly and massage the body, stretching the arms crosswise to unblock the meridians—an effect superior to taking medicine; sitting upright and exhaling toward the sky disperses the turbid Qi from food and alcohol; practicing in summer brings a refreshing coolness.

In the chapter "On the Gains and Losses of Sexual Practices," it emphasizes that Jing (essence) and Qi are the foundation of life, and excessive depletion harms health. Peng Zu said: "The highest masters of life cultivation sleep in separate beds, the middling ones share a bed but use separate covers—taking a thousand doses of medicine is not as good as sleeping alone." Craving beauty harms the eyes, indulging in music damages the ears, and excessive tastes ruin the mouth. If one can restrain desires and harmonize body and mind, longevity may be extended. A crucial warning: avoid overeating at night, as late-night drinking and feasting shorten the lifespan.

Sleeping while intoxicated depletes one month of one's lifespan. The most detrimental practice throughout the year is engaging in sexual intercourse at night—this drains a full year of vitality, and such depletion cannot be replenished through recuperation. This should be avoided for life. When sleeping at night, one should breathe with the mouth closed; keeping it open disperses primordial Qi (vital energy) and may allow pathogenic influences to enter through the mouth.

The Daoist adept Caïnü (a 170-year-old immortal who appeared as a maiden of fifteen and counseled the Shang king) once asked Pengzu: "Upon reaching sixty years of age, should one abstain from sexual activity to preserve Jing (essence)?" Pengzu replied that this was not necessarily so. A man cannot live entirely without women, for doing so would breed unfulfilled desire, which exhausts the Shen (spirit) and ultimately shortens life. While maintaining pure desirelessness would be ideal, few can achieve this. Forcibly suppressing desires proves unsustainable and often leads to loss of control—manifesting as nocturnal emissions, turbid urine, or even the pathological condition of "ghost intercourse" (involuntary sexual encounters with spectral entities in dreams).

When Yang Qi is insufficient yet one wishes to engage in intercourse, begin with gentle movements to gradually stimulate arousal, slowly making contact with the female partner to allow Yin Qi to gently awaken Yang Qi. Only when Yang energy naturally strengthens should one proceed, maintaining a measured pace throughout. At the moment of approaching ejaculation, cease activity, hold the breath to nourish the spirit, close the eyes and lie flat, regulating respiration through Daoyin (guiding and pulling techniques). Alternating sexual partners proves more conducive to longevity, as intercourse with a single woman provides only meager Yin energy and limited benefit.

The Dao of Yin-Yang operates like water and fire: the Yang path corresponds to fire, the Yin path to water. Since water overcomes fire, Yin energy inevitably consumes Yang. Chronic indulgence continuously depletes Yang Qi at great cost. Yet if one can unite with twelve women without emission, it preserves youthful appearance; mastering ninety-three women without release may even grant ten thousand years of life.

Insufficient Jing-Qi leads to illness; its complete exhaustion brings death—thus it demands utmost caution. Moderate intercourse with occasional emission allows natural regeneration of essence, but frequent release leads to depletion. For ordinary men engaging repeatedly, retaining semen during one encounter builds reserves, but after emission, diminished essence prohibits further activity. The recommended practice limits emission to twice monthly, permitting gradual recovery—though this proves less effective than frequent union without release.

This passage primarily discusses the Daoist art of bedroom cultivation, emphasizing that sexual union between men and women must follow natural rhythms, otherwise it will harm health. The text points out that forcibly expelling essence (Jing) against the natural Dao can lead to mental disorders, diabetes, madness, malignant sores, and other illnesses—all resulting from not understanding the proper timing for replenishment and release.

Pengzu (the ancient master of longevity arts) said: Both men and women require normal sexual activity. If one remains solitary for long periods while forcibly suppressing desires, it will instead shorten lifespan and cause illness, even attracting ghostly disturbances. The damage from losing essence once under such circumstances equals a hundred times the normal impact. For those wishing to conceive intelligent and prosperous offspring, it's best to choose "lunar lodge days" (specific auspicious dates) for intercourse.

Tianlao (legendary advisor to the Yellow Emperor) held that a person's nobility or baseness is connected to the timing chosen by their parents for conception. When union occurs during appropriate stellar positions and auspicious hours, it can not only produce distinguished offspring but also benefit the parents themselves. The text enumerates eight favorable stellar positions (such as Shi, Shen, Jing, and Gui) and auspicious days including the 2nd, 3rd, 5th, 9th, and 20th of each month.

Specific methods suggest: The optimal time is between midnight and cockcrow when Yang Qi first emerges. Engage in gradual arousal and drink the "jade spring" or "jade nectar" (Daoist terms for saliva). Each season has its ideal timing: spring days of Jiayin and Yimao, summer days of Bingwu and Dingwei, etc. For conception, choose auspicious hours 1, 3, or 5 days after menstruation ends—such timing will produce sons blessed with longevity and wisdom.

The essence of health preservation lies in treasuring Jing and Qi. Moderate sexual activity twice monthly aligned with the twenty-four solar terms may extend life to 120 years. Combined with herbal regulation, one might even achieve longevity. The greatest concern is young people lacking restraint, often excessively depleting their vital essences.

This health preservation classic primarily discusses the art of the bedchamber (ancient Daoist sexual cultivation methods) and its relationship with longevity. The core principle states: one must understand moderation in sexual activity while young—realizing this only in old age is too late. Specific considerations include:

Conserving seminal essence is crucial. Quoting the Immortal Scriptures, the text explains that for men and women seeking health and longevity, sexual union requires focused mental attention—visualizing an egg-sized red light at the navel while moving slowly. Ejaculation should be withheld the moment release is sensed. Practicing this technique multiple times daily promotes longevity. Daoist Liu Jing advised: in spring, ejaculate once every three days; summer and autumn twice monthly; winter demands complete seminal retention. This follows nature's pattern where winter stores yang energy internally—human emulation of this principle ensures long life. One winter ejaculation damages the body equivalent to a hundred spring emissions.

Post-sixty, complete abstinence is ideal. If absolute celibacy proves impossible, at least avoid ejaculation. No tonic medicine surpasses the importance of sexual moderation. The text emphasizes that bedroom arts form life's foundation, just as trees cannot survive without roots. Even consuming elixirs or practicing daoyin exercises becomes futile without mastering these essential techniques.

Specific warnings highlight dangerous scenarios: intercourse after heavy drinking or eating causes severe harm; forcing urine retention during sex leads to urinary diseases; coupling while angry fosters toxic abscesses. Avoid inauspicious timings: lunar new/full moons, eclipses, extreme weather, five days around seasonal transitions, and one's birth year anniversary. These periods of yin-yang disharmony drastically deplete qi-blood.

Final reminders: avoid intercourse immediately after hair washing or during physical exhaustion. These prohibitions safeguard the body's righteous qi (vital energy) while preventing pathogenic invasion.

This classic text on health preservation primarily discusses taboos regarding sexual activities and methods for nurturing life. The ancient longevity master Peng Zu states that one should avoid intercourse during periods of intense emotional fluctuations, as well as during extreme weather conditions and special celestial phenomena: severe cold or heat, storms, heavy snowfall, solar or lunar eclipses, earthquakes, and thunderstorms—these constitute "heavenly prohibitions" (Tianji). States of drunkenness, fullness from overeating, and strong emotions like joy, anger, sorrow, or pleasure fall under "human prohibitions" (Renji). Engaging in sexual activity near places dedicated to mountain and river deities, earth gods, or kitchen gods constitutes "earthly prohibitions" (Diji).

After avoiding these three categories of prohibitions, one should also select auspicious days: during spring, choose days with the heavenly stems Jia or Yi; during summer, Bing or Ding; during autumn, Geng or Xin; during winter, Ren or Gui; and during the transitional months between seasons, Wu or Ji. These days are marked by vigorous Qi (vital energy) and are suitable for intercourse, aiding longevity and the conception of healthy offspring. Violating these taboos may lead to illness and produce weak or short-lived children.

Laozi mentions that "returning the essence to replenish the brain" (a Neidan cultivation technique) can delay aging. The Zidu Jing records specific methods: during intercourse, one should "enter gently and withdraw strongly"—that is, enter softly and withdraw quickly, pausing briefly at the shallow entrance of the female partner before withdrawing. By controlling the rhythm in this manner and completing eighty such movements, one accomplishes a full cycle of Yang Qi circulation. Laozi summarizes: gentle entry and swift withdrawal constitute the Dao of health preservation, while the opposite depletes one's vital energy. These are the essential principles for cultivating nature and prolonging life.