Small Heavenly Circuit True Qi is the central energy cultivated in the first major stage of Taoist internal alchemy. Understanding its nature is the foundation for opening the Ren and Du Meridians and entering the deeper levels of Dan Dao practice.
What Is Small Heavenly Circuit True Qi?
The Small Heavenly Circuit of Internal Alchemy belongs to the lineage of Dan Dao. Without exception, it holds “Qi” to an extraordinary standard of cultivation and conscious control, setting forth an essential dialectical relationship between Qi and human beings.
The Small Heavenly Circuit teaches:
“For humans and all things, when Qi gathers, there is life; when Qi disperses, there is death.”
In actual practice, the Small Heavenly Circuit True Qi is also called Yuan Qi (元气, Original Qi) in many contexts. Both are the transformations and accumulations of the Qi mechanism — in truth, they are one and the same Qi.
Correct practice of the Small Heavenly Circuit cannot be separated from the proper use of Qi. The ancients were never lacking in true explanations of this.
Ge Hong, the great Jin Dynasty master, wrote in the Baopuzi (抱朴子):
“Human beings are within Qi, and Qi is within human beings. All things between Heaven and Earth require Qi to live.”
The Zhuangzi, in the chapter “Knowledge Wandering North” (知北游), also states:
“Human life is the gathering of Qi. When it gathers, there is life; when it disperses, there is death… Through Heaven and Earth, all is one Qi.”
The Lingshu (灵枢, Spiritual Pivot), in the chapter “On Decisive Qi,” says:
“The human being has Essence, Qi, fluid, humor, blood, and vessels — yet in my view, all are but one Qi.”
All of the above point to the true nature of Qi in the Small Heavenly Circuit. This is the authentic core of correct Small Heavenly Circuit practice from ancient times to the present.
True Qi has no spatial structure, no temporal limitation. It has no mass, no shape, no speed, and no measure.
The existence of Small Heavenly Circuit True Qi can only be perfectly realized through its own spontaneous and infinite movement, through its wondrous mechanism of transformation.
In the cultivation of the Small Heavenly Circuit, this core True Qi has no coming and no going, no before and no after, no beginning and no end, no above and no below. It pervades the Great Void (太虚), yet governs all transformations.
True Qi is formless, yet it is higher than the highest, vast beyond any limit. True Qi is without appearance, yet it is deeper than the deepest abyss, unfathomable in its profundity.
In the practice of the Small Heavenly Circuit, True Qi is the Tao itself. Heaven and Earth rest upon it. The Void becomes vast through it. The sun and moon shine because of it. All living beings transform and adapt through it.
The state of True Qi can be described this way: heaven and earth are filled with a single Qi. It is everywhere, present at all times. At its largest, it has no outside. At its smallest, it has no inside. True Qi encompasses all forms and embraces the entire cosmos. Its appearance knows no coming or going. Trace it back to before the beginning of Heaven and Earth, and you cannot find its origin. Follow it beyond the end of Heaven and Earth, and you cannot discover its end.
Yet in the correct practice of the Small Heavenly Circuit, everything is put to human use. The Qi within the human body is formed from the union of True Qi and Grain Qi (谷气, the Qi derived from food).
The Wondrous Function of Small Heavenly Circuit True Qi
In its original meaning, the Small Heavenly Circuit True Qi — also called Yuan Qi — is the essential element that sustains human existence.
The Lingshu, in the chapter “On Expelling Evil,” states:
“True Qi is that which is received from Heaven, combining with Grain Qi to fill the body.”
Yuan Qi is the primal Qi of the cosmos, the origin of all things in the universe, the fundamental substance from which everything is formed.
The character “Yuan” (元), dating back to the oracle bone script, depicts two horizontal marks above a person’s head, signifying the beginning of the universe, the primordial chaos of the Great Beginning.
Zhuangzi and Laozi — together known as “Lao-Zhuang” — reveal this hidden truth in a single breath: Yuan Qi is the root substance of all things. It carries energy and transmits information. When it gathers, it forms matter; when it disperses, it returns to Qi.
When Yuan Qi condenses, it forms the body and spirit of all things. When the body and spirit of things dissolve, they return to the primal state of Qi.
Laozi called this Yuan by the name “Tao” (道):
“There is something formed in chaos, born before Heaven and Earth.”
And further:
“Silent and vast, independent and unchanging, moving in cycles without weariness, it may be regarded as the mother of Heaven and Earth. I do not know its name; I call it Tao. Forced to describe it, I call it Great. Great means passing on. Passing on means going far. Going far means returning. Therefore, the Tao is great, Heaven is great, Earth is great, and the human being is also great. Within the universe are four greatnesses, and the human being is one of them.”
Then:
“The human being follows the laws of Earth. Earth follows the laws of Heaven. Heaven follows the laws of the Tao. The Tao follows its own nature… The Tao gives birth to One. One gives birth to Two. Two gives birth to Three. Three gives birth to the ten thousand things.”
Therefore, the human body and spirit are the result of Yuan Qi — True Qi — gathering. Human life and death are the result of Yuan Qi — True Qi — transforming.
Yuan Qi is True Qi. It is the master of all human life activity, the conductor of the dance of human life.
The Lingshu says again:
“True Qi is that which is received from Heaven, combining with Grain Qi to fill the body.”
Here it is made clear that True Qi is endowed from the prenatal realm, revealing its essential, innate quality.
This “True Qi” is precisely what Internal Alchemy calls the “Primordial True Unified Qi” (先天真一之气) — the Yuan Qi of the human body.
It is clearly stated that the Qi of the human body is composed of both the prenatal True Qi and the postnatal Grain Qi.
The Suwen (素问, Plain Questions), in the chapter “On the True Words of Ancient Times,” says:
“In tranquil emptiness, True Qi follows. When the spirit is guarded within, how can illness arise?”
In truth, if we simply remove vanity and delusion, live simply, maintain regular rhythms, and prevent Qi from leaking outward, then preventing and improving illness becomes simple.
The Suwen, in the chapter “On the Separation and Union of True and Evil Qi,” states:
“True Qi is the meridian Qi. When the meridian Qi is greatly depleted, it is said that its arrival cannot be met. This is what is meant.”
These discussions clearly indicate that True Qi flows and distributes through the physical body and the meridian system.
Therefore, whether we speak of True Qi, meridian Qi, vessel Qi, spirit Qi, Essence Qi, heart Qi, lung Qi, kidney Qi, liver Qi, central Qi, stomach Qi, bone Qi, or acupoint Qi — all belong to the Primordial Yuan Qi of the human body.
Scientifically speaking, Yuan Qi is endowed from the prenatal realm. It possesses a four-dimensional nature formed by the interweaving of three factors: the father’s foundation, the mother’s blood, and the natural time-space continuum.
In the four-dimensional coordinate system of natural time and space, the Original Essence carrying the father’s root penetrates the mother’s blood, which carries the mother’s foundation. In the instant that Essence and Qi form their unified entity, a living life is conceived.
At that moment, the Earth — carrying the Essence and blood of both parents — is moving through a specific point in the natural time-space continuum. The Yuan Qi of that specific point in time and space also flows into the newly-conceived Essence and blood in that same instant.
In this way, the Essence and blood acquire a four-dimensional Yuan Qi:
- One dimension is the paternal Yuan Qi, carrying the father’s information code.
- One dimension is the maternal Yuan Qi, carrying the mother’s information code.
- The remaining two dimensions are the natural time and space Yuan Qi, representing the information codes of the natural cosmos.
Therefore, the Yuan Qi — True Qi — of the human body is four-dimensional in nature, yet operates within three-dimensional space. Its quantity and quality are influenced by the father, the mother, and the natural time-space continuum. If you’re ready to learn how to gather and circulate this True Qi, explore our complete 【Small Heavenly Circuit True Qi cultivation course】.
The Relationship Between Small Heavenly Circuit True Qi and the Human Body
In supporting the life activities described above, True Qi works on the principle of “deposited in full, withdrawn in small amounts, gradually consumed.”
True Qi is injected once at birth, by one’s parents and by nature.
True Qi is like a gas canister. At birth, it is completely full. From then on, it is gradually consumed — less and less with each passing day — until it runs out entirely. At that moment, life reaches its end.
This is what makes the practice of the Small Heavenly Circuit so significant. Without understanding the method of “adding oil to the lamp to extend the flame,” everything must be left to fate.
True Qi comes naturally with birth. It is called “innate” — that which is present from the very beginning.
True Qi is stored in the Dantian. It is activated at the Shenque (神阙, the navel) on the body’s Ren Meridian, along the front center line. It circulates within the body, distributing through the meridians, acupoints, the five organs, and the six bowels.
In plain terms:
- Shenque (神阙) is the front door of the True Qi storehouse.
- Guanyuan (关元) is the back door of the True Qi storehouse.
- Qihai (气海, the Sea of Qi) is the central sea of the True Qi storehouse.
In the course of normal daily life activity — including the conception of offspring — under healthy conditions, the body replenishes Qi as quickly as it consumes it. What is used, is refilled.
This replenishment is accomplished through the coordinated work of the three points: Shenque, Qihai, and Guanyuan.
Generally speaking, among all forms of Qi, the one that consumes the most and is replenished the most is Stomach Qi (胃气).
This is because human beings, like animals, cannot fix Qi on their own. We rely on the intake of food and drink. This is why there is the saying: “The human being is iron, but food is steel.”
Stomach Qi is what digests and absorbs food. In the process of digestion and absorption, a great deal of Stomach Qi is consumed.
Of course, the body’s True Qi replenishes Stomach Qi at all times — but only when the body is in a healthy state.
Once the consumption of Stomach Qi becomes too great, and replenishment cannot keep pace, a deficiency of Stomach Qi will appear. The main symptoms are: loss of appetite, never feeling hungry, feeling full after only a few bites, and discomfort after meals.
A deficiency of Stomach Qi indicates that the body’s total Yuan Qi — True Qi — is already insufficient.
This is why the Small Heavenly Circuit cultivation method emphasizes treating illness before it arises, and why it places the greatest importance on protecting Stomach Qi and reducing the consumption of Yuan Qi — True Qi.
Of course, the purpose of practicing the Small Heavenly Circuit — whether for improving health or for nourishing life — begins with one principle:
“Preserve one measure of Stomach Qi, and you preserve one measure of life.”
In the process of improving the body through Small Heavenly Circuit practice, particularly during the overall course of recovery and transformation, a great deal of Stomach Qi will likewise be consumed. This brings various uncomfortable sensations to the practitioner — what we commonly call “Qi rushing against the illness” (气冲病灶) reactions.
At such times, for one practicing the dual cultivation of nature and life through the Small Heavenly Circuit, the only thing to do is persist. The Small Heavenly Circuit is a systematic practice. Begin with the foundation and learn step by step in our Taoist Dan Dao practice course.
Stanford Encyclopedia of Philosophy — Taoism
