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Establish the great furnace and large tripod (Honglu Dading) to refine the true essence, internally nourishing Lead and Mercury (representing Jing and Shen), externally symbolizing Kan and Li (Water and Fire in Bagua), operating Yin and Yang, driving Dragon and Tiger (Shen and Kidney Qi), to return to the origin and restore the primordial state.
Thus, Xianshuang Jiangxue (Mysterious Frost and Crimson Snow), Yurui Jingu (Jade Stamen and Golden Paste), through nine transformations, become treasures.
Li (Fire) originates from below Kan (Water), Mercury resides in Water, representing the image of above and below.
Shen (Spirit) resides in the middle, called the Three Powers (Heaven, Earth, Human).
The Dao generates One, One generates Two, Two generates Three, Three generates all things, ultimately returning to One.
One is Water, Two is Fire, Three is Earth; Water and Fire each obtain their one.
Obtaining One is the mother of all things; thus, Water generates a male as Kan, named Mercury; Fire generates two females as Li, named Lead. This is called the Four Images.
Mercury is Dan (Elixir); Lead is Medicine.
Tianlao Shenjun said: "Use Lead but not Lead, must work within Lead; when it comes time to use Lead, using Lead is still wrong." What does this mean?
Mercury is Yang, the Son; Lead is Yin, the Mother.
Without Lead, Mercury is a son without a mother, how can it generate life?
Lead and Mercury combine for three years to become a treasure; burning away the turbid Qi of Lead is called shedding the shell, its name is Pure Yang (this is what is meant by "using Lead but not Lead").
Starting the fire must occur at Zi hour (11 PM - 1 AM), why? Because it inherits Yang Qi to start the fire, making the fire power complete; after Zi hour, Yin becomes dominant and the fire will not burn.
The Classic says: "Fire starts below the navel, Water emerges from the tripod," which is the image of Ji Ji (Water and Fire interacting).
I have a Central Palace Tripod located below the heart (i.e., Guizhong).
This tripod, when the time reaches Mao hour (5 AM - 7 AM), increases Lead (Jing/Essence); when the time reaches You hour (5 PM - 7 PM), increases Mercury (Jin/Yellow Fluid).
Lead cannot rise without Fire; Mercury cannot condense without Lead.
The Classic says: "Take Water from the Mountain (Brain), start Fire from the Sea (Navel), take Mercury from Chonglou (Throat/Trachea), gather Lead from Jiutian (Top of Head)."
Its operation prepares for the four seasons, guided by Shen and harmonized with Qi, so the Four Images are complete.
The Central Palace Tripod is shaped like an egg; after three years, Red and White separate and the body transforms.
Golden Intestines and Jade Bones emerge from the Five Elements, named Tuo (Molting); thus, when the Four Images intersect, Mercury dries up, and when One Yang is complete, Lead is removed, named Huan Dan (Returning Elixir).
Thus, Hun and Shen are established, the body becomes firm, Three Flowers unite, Five Colors return to Yang, this is called the Place of Non-Cultivation (Natural Attainment).
Previously, Chunyangzi asked Zhengyangzi: "Why are they called Lead and Mercury?"
Answered: "Lead is born on the left of the Kidneys, black outside and white inside, the righteous Qi of Water, residing in the North (Zi position), Yang within Yin; Mercury is born on the right of the Kidneys, green outside and red inside, the righteous Qi of Metal, residing in the South (Wu position), Yin within Yang."
Asked: "Fire and Water are in the body, what generates them?"
Answered: "The True One Qi of the Lower Yuan, when extreme, generates Fire starting below the navel."
Water comes from the brain.
Fire rises from below like a steamer, this is the Way of Ji Ji.
Asked: "Lead is static, representing Nature (Xing); Mercury is dynamic, representing Life (Ming), what do they actually come from?"
Answered: "The true Qi of the five grains is stolen by the Heart, transformed into Blood, Blood transforms into Fluid, Fluid transforms back into True Qi, condensing into Shen, this is Xing."
Ming resides in the center of the two Kidneys, within the Yuan Sea, the True Yuan Qi emitted from there contains True Water, originally born from the Heart, flowing to the Kidneys, transforming into Jing (Essence); Jing has nothing closer than these two.
Asked: "Why is the Spleen called Huangpo (Yellow Nanny)?"
Answered: "The Spleen can receive the fluid of the Heart and the Qi of the Kidneys, harmonizing them to form Dan, hence called Huangpo."
Jinye Lianxing (Golden Fluid Refining Form), where form and spirit subtly merge with the True Dao, what does this mean?
Answered: "Refining Mercury into Spirit, refining Qi into Form, then posterior generation and anterior swallowing, two substances combine to form a fetus, this is merging with the True Dao, this is Jinye Lianxing."
What is Qifan Jiuhuan (Seven Returns and Nine Restorations)?
Answered: "From Zi to Shen involves nine turns, so cultivators take nine years as one turn, three turns as one cycle, thus nine refinements yield the Returning Elixir."
First year benefits Qi, second year benefits Blood, third year benefits Vessels, fourth year benefits Flesh, fifth year benefits Marrow, sixth year benefits Tendons, seventh year benefits Bones, eighth year benefits Hair, ninth year benefits Form.
After nine completions, eyes are bright like lacquer, skin smooth like congealed fat, bones transform to jade, intestines transform to tendons, white hairs grow between eyebrows, golden light surrounds the body, walking surpasses six horses, seeing clearly beyond a hundred steps, mouth and nose often have a clear fragrance.
Internally circulating the Five Zang, externally connecting the Seven Orifices.
My True Qi circulates up and down, from Shen to Yin, this is Qifan (Seven Returns).
One Yin and One Yang, one ascending and one descending, one floating and one sinking, Jing, Marrow, Nasal Mucus, Saliva, Qi, Fluid, Jin, preserved day and night without loss, this is Qifan.
What is Caidan (Gathering Dan)?
Answered: "Fill the mouth with saliva and transport it to the Mingfu (Life Gate), move Qi to the Huangting (Yellow Court), thus Qi and Fluid create Essence. Saliva accumulates into Blood, Blood accumulates into Pearl, Pearl is Mercury, Mercury is Sand, Sand is Dan, this is Caidan."
What are the Three Vehicles?
Answered: "The areas slightly below the ribs front and back are the Ox, Sheep, and Deer vehicles. The epigastrium is the River Vehicle (Heche), also Tianhe, where True One Qi from the Water Mansion comes from within Heaven, passing through mouth and nose, hence called Heche; below the navel is the Train Vehicle (Huoche)."
Asked: "Who produces the Two Springs?"
Answered: "They emerge from the mouth, under the tongue, with two acupoints on left and right, size like needle tips, connecting to Heart and Lung, often producing saliva in the throat, this moistens all things and nourishes the Five Zang."
Having heard these essential teachings, Chunyangzi opened the mysterious lock and knew the prohibitions of the Eight Leaks.
Tears flowing out are Liver Leak; nasal mucus flowing out is Lung Leak; saliva flowing out is Kidney Leak; sweat from external genitals is Heart Leak; night sweats are Small Intestine Leak; drooling during sleep is Brain Leak; dreaming of sexual intercourse with spirits is Spirit Leak; lust is Body Leak.
If these eight can be secured, allowing them to enter the Golden Tripod and Jade Pool, gathering them as Lead and Mercury, can one be saved?
Can one extract saliva from Xuanying, enter Mingtang, irrigate below the throat, if there is Huan Dan, then necessarily cook Yuan Ye above, making Yin exhaust and Yang generate, drawing out Fire and adding Water, cycling endlessly.
How to extract saliva? Stir and rinse under the tongue, waves fill naturally, swallowing injects into the Dan Sea.
For those whose great work is about to succeed, is it not that the Evil Pass is sealed externally and the Life Pass opens internally?
The Lung governs Ying and Wei Qi; in the Kidney, it is Metal generating Water, the way of father and son.
Swallow thirty times in the Yu Chi (Jade Pool), then hundred vessels open and blood nourishes, this is Qifan.
Why say: Ascending to brain becomes Cloud, descending to mouth becomes Water, transmitting to Lung becomes Saliva, transmitting to Heart becomes Blood, transmitting to Liver becomes Essence, transmitting to Spleen becomes Fluid, transmitting to Kidney becomes Two Vessels forming Yin Essence and Yang Purity?
Jin Jin Yu Ye (Golden Saliva and Jade Fluid) are generated by Yin and Yang.
If one can ascend through Qifan, transmitting to two Kidneys; descend changing to Jiuhuan, transmitting to the Brain, going up and down ceaselessly, then Yuan Qi becomes full.
Ba Su fluids circulate in the Kidneys, fertilizing and penetrating the Five Internal Organs, further refined by Jiujiu True Fire, when Qi is full and timing sufficient, the Golden Dan is formed.
Practicing Qizhuan Jiuhuan allows Bigu (Grain Avoidance).
The Spring under the tongue is the medicine against hunger.
Even for beginners, if they can close eyes and sit quietly, seeing no one all day, drinking or eating nothing, often touching the upper palate with the tongue, stirring inside and outside of upper and lower teeth, taking the spring water under the tongue until the mouth is full, then swallowing, and repeating the previous method, the more practiced, the more spirited one feels. Counting five hundred repetitions per day and night, the abdomen naturally feels no hunger, among which one feels spiritual connection and the completion of the Great Dan, seeming like just a few days, happiness indescribable, this is called Xiuliang Jue (Grain Avoidance Formula).
Therefore it is said: Huachi Shenshui (Divine Water of the Splendid Pool), Yu Meng Jin Qian (Jade Mercury and Golden Lead).
Qiankun operates, Sun and Moon cook and fry.
Zhun Meng starts fire, advance and retreat carefully studied.
Chou Tian Mu Yu (Drawing and Adding, Bathing), nine turns in one year.
Kan penetrates, Li connects, merit performs three thousand.
Hold it without laziness, transform form into Immortal.