《證道歌》

This passage serves as the preface to the Daoist classic "Song of Attaining the Dao," explaining the fundamental principles and methods of cultivation for achieving immortality. Here's a simplified interpretation:

Those who aspire to attain immortality and ascend to the celestial realms must first comprehend the principle of "True Oneness" (Zhenyi). True Oneness is the Dao itself, which manifests as the Primordial Origin (Yuan) - the innate primordial Qi (Yuanqi) within the human body. All things in creation are born from Qi, and humans likewise receive life through this primordial energy. The Daoist scriptures state that while the Dao appears empty, it holds profound utility. The "Jade Capital Mountain Scripture" teaches methods of breath regulation and embryonic respiration (Taixi, resembling fetal breathing in the womb) to harmonize one's Qi. The "Yellow Court Scripture" records how immortals sought longevity by absorbing primordial Qi, achieving a state akin to an infant in its mother's womb.

Ancient sages left numerous cultivation classics like the "Dragon-Tiger Scripture," "Dao De Jing," along with various immortal songs and incantations (Fulu) - all revealing essential cultivation secrets. However, sages often expressed these truths through metaphorical language, using terms like lead and mercury (Qian Gong) or cinnabar to symbolize internal alchemical processes. Modern practitioners who misunderstand these metaphors and blindly attempt elixir-making for longevity only drift further from the immortal path. As Master Guiguzi observed: even sages became wise through learning, not by birthright. The "Lotus Sutra" compares Dao cultivation to digging a well - one must first penetrate the yellow earth before reaching the black mud, where water is near. Wei Boyang emphasized that cultivation methods aren't fabricated arbitrarily, just as scholars preparing for imperial examinations must first endure rigorous study in mountain retreats - true Daoist practice requires discovering fundamental methods to succeed.

(Note: "Embryonic respiration" refers to a special Daoist breathing technique mimicking fetal respiration; terms like "lead and mercury" in alchemical practice often symbolize the Yin and Yang energies within the human body.)

This scripture discusses the relationship between Daoist cultivation and Qi (vital energy), conveying these essential teachings:

The key to cultivating the Dao lies in nurturing Qi. Just as fish cannot survive without water, humans cannot exist without Qi—when Qi is exhausted, life ends. Qi is the fundamental basis of human existence, revered as the "Mother of Dao" (primordial Yuanqi). During the Jin dynasty, twelve practitioners including Wu Xu achieved success through filial devotion to this "Mother of Dao," leaving behind traces of their accomplishment.

The true path to longevity isn't found in external pursuits, but within one's primordial Qi. Ancient wisdom states: reckless action invites disaster, while all external seeking proves futile. Daoist scriptures clarify: cultivating virtue and refining the self constitutes the genuine Way. When Qi remains within, it generates Shen (spirit); when extended outward, it nurtures others. External alchemy (Waidan) materials like lead, mercury, and mineral substances are not the true elixir of immortality.

Several enlightenment poems further elucidate:

1. One must nurture the "Golden Essence" (primordial Yuanqi) within to sustain all spiritual energies and attain natural longevity. Unlike ordinary people chasing pleasures only to return to dust, practitioners preserve this essence.

2. The true spiritual medicine isn't external, but one's own Jing (essence), Qi, and Shen—through harmonious Yin-Yang alignment, achievement is certain.

3. Taking heaven and earth as the alchemical cauldron, the unfathomable transformations of internal Yin-Yang constitute "Shen." When Yuanqi undergoes nine cycles (repeated refinement), it crystallizes into the "Returned Elixir" (Neidan).

4. Cultivation requires precise "fire timing" (practice rhythm), moving naturally like seasonal cycles and celestial motions.

5. Alchemy employs "spiritual fire" (the fire of intention), not ordinary flame. The body inherently contains "Three Blossoms" (transformed energies of Jing-Qi-Shen)—blind pursuit of external substances only wastes precious time.

Core principle: Daoist cultivation emphasizes nurturing one's primordial Qi through Yin-Yang regulation and controlled refinement to develop internal elixirs, not through external substances.

Plain Language Interpretation of the "Song of Attaining the Dao":

Section Six discusses "Yellow Sprouts" (a Neidan term symbolizing primordial Qi):

Yellow Sprouts correspond to the rhythms of heaven and earth, representing the pure Yang Qi hidden in nature. Like the springtime vitality nurtured in the Hua Pool (another name for Dantian), all living things sprout from this primordial energy.

Section Seven explains lead and mercury (fundamental alchemical substances):

When the crescent moon first rises (symbolizing the emergence of Geng metal), the Dui trigram's direction opens. Black lead (true lead) refines into silvery mercury embryos (true mercury), just as the numbers nine and six symbolize spring-summer growth, while three, five, seven and nine represent autumn-winter cycles.

Section Eight describes the dragon and tiger (heart-kidney water-fire dynamics):

The Azure Dragon (heart fire within liver wood) belongs to Jia wood, while the White Tiger (lung metal within kidney water) corresponds to Geng metal. The creative transformations of heaven and earth reside within these Three Treasures (Jing, Qi, Shen). Only by comprehending Yin-Yang can one perceive the Dao.

Section Nine explains the alchemical cauldron:

The tripod vessel symbolizes the Three Powers (heaven-earth-humanity), with Yin-Yang rotations mirroring Qian-Kun transformations. The true alchemical vessel requires no gold or silver casting, just as the hidden dragon (initial Yang line) conceals mysteries of change.

Section Ten reveals the Dao's marvelous functions:

"Being" manifests the Dao's appearance, while "non-being" embodies its fundamental function. That which has form within the formless is the primordial Qi, ultimately returning to life's source.

Section Eleven describes celestial circulation:

The body's Qi flows like rolling pearls (flowing pearls), with primordial Yang energy circulating seamlessly. The Three Dantians correspond to heaven-earth-humanity, with breathing like bellows driving Qi movement.

Section Twelve presents essential longevity principles:

Vital Qi (mother Qi) nourishes the entire body, purifying organs through Three Origins (heaven-earth-humanity) circulation. Earthly metals and minerals belong to Yin, requiring Yang elixirs (pure Yang energy) to replenish declining vitality.

Section Thirteen explains cultivation achievements:

Primordial Qi generates countless wonders—every person inherently possesses this without external seeking. Breathing stimulates the Hua Pool (saliva) to rise, and when celestial mechanisms activate, one achieves the immortal true body.

Section Fourteen describes transcendence:

The ninefold-refined Golden Elixir stabilizes the essence field (lower Dantian), ascending directly to the Mud Ball Palace (crown center) to complete the work. Transcendent beings surpass triple-world constraints, shedding mortal shells like serpents or cicadas.

Section Fifteen explains the River Chariot's movement:

Kun represents the chariot carrying earth Qi, while Kan water symbolizes kidney essence as the river. Those who attain this Dao rise beyond ordinary existence, while those who lose it remain worldly.

Summarizing the Dao's essence:

The Eight Pure Qi (essences from all directions) gather above at the Mud Ball Palace, crystallizing in the Jade Palace (upper Dantian) to accomplish immortality. The foundation of practice lies within the human body—no external search is needed.

(Note: The entire text uses Waidan and Neidan frameworks, employing trigrams, Five Phases, and alchemical terminology to elucidate the process of life refinement, emphasizing Yin-Yang harmony and the transformative principles of Jing-Qi-Shen cultivation.)