Tag Archives: Yin-yang


The concept of qi

Similar to the theory of  yin-yang, qi was derived from ancient Chinese philosophy, which believes everything is related. In traditional Chinese medicine, qi is treated as the fundamental substance of the human body, and its movements explain various life processes. Qi in its physiological sense constitutes, replenishes and nourishes the human body. Qi is often called -vital energy, because it is believed to be the motive energy derived from the essential substance for various vital processes.

Qi is often classified according to what it acts on. For example, the heart-qi refers to the force with which the heart works and the blood circulates, so it regulates the cardiac function; the stomach-qi refers to the force with which the stomach functions, so it regulates the gastric function. The qi that maintains normal functioning for resistance against disease is called zheng-qi, which means genuine energy or body resistance. The qi that warms the body and maintains normal body temperature is called yang-qi, which is similar to the heat energy. Metabolism of materials and energy also depends on the action of qi, including metabolism of blood, fluids and other essential materials.

Qi is formed from the inhaled oxygen, the dietary nutrients, and the inborn primordial qi stored in the kidney, which may be genetically related. Qi circulates along meridians and collaterals. A healthy body requires normal circulations of qi. Health problems occur if the flow of qi is stagnated. The circulation of qi is also closely related to mental conditions. Emotional instability may cause the stagnation of qi. For example, anger may lead to dizziness, headache, distress in the hypochondriac regions, or distention in the stomach with impairment of appetite. On the other hand, the exercise of mind can help the circulation of qi, which is the purpose qigong exercise.

General methods of qigong

Qigong is an exercise to regulate the mind and breathing in order to control or promote the flow of qi. Since qi plays such an important role in the vital processes of the human body, the regulation of qi flow is therefore be used to preserve health and treat disease. Medical qigong, the qi exercise practiced to prevent and treat disease, is different from general physical exercise. While physical exercise is aimed at building up health or restoring physical functioning by enhancing strength, medical qigong is focused on the mobilization of functional potentialities by regulating the mind. In other words, physical exercise is purely somatic, while qigong exercise is generally psycho-somatic. Another important difference between physical exercise and qigong is that physical exercise expends energy by tensing the muscles and accelerating the heart beat and respirations, while qigong works to ease, smooth and regulate breathing to store up or accumulate energy in the body.

Medical qigong can be divided into two main categories: internal qigong, which is practiced by the patients themselves to preserve and promote their own health, and external qigong, which is performed by a qigong master on a person with health problems. Practicing internal qigong requires regulation of the mind, body and respiration. There are many kinds of internal qigong, some with motion and others without. Qigong can be practiced while sitting still, standing upright, or lying on the back or side. The basic requirement is to stay comfortable and relaxed.


The philosophical origins of Chinese medicine have grown out of the tenets of Daoism (also known as Taoism). Daoism bases much of its thinking on observing the natural world and manner in which it operates, so it is no surprise to find that the Chinese medical system draws extensively on natural metaphors. In Chinese medicine, the metaphoric views of the human body based on observations of nature are fully articulated in the theory of “Yin-Yang” and the system of Five Elements.

The direct meanings of yin and yang in Chinese are bright and dark sides of an object. Chinese philosophy uses yin and yang to represent a wider range of opposite properties in the universe: cold and hot, slow and fast, still and moving, masculine and feminine, lower and upper, etc. In general, anything that is moving, ascending, bright, progressing, hyperactive, including functional disease of the body, pertains to yang. The characteristics of stillness, descending, darkness, degeneration, hypo-activity, including organic disease, pertain to yin.

The function of yin and yang is guided by the law of unity of the opposites. In other words, yin and yang are in conflict but at the same time mutually dependent. The nature of yin and yang is relative, with neither being able to exist in isolation. Without “cold” there would be no “hot”; without “moving” there would be no “still”; without “dark”, there would be no “light”. The most illustrative example of yin-yang interdependence is the interrelationship between substance and function. Only with ample substance can the human body function in a healthy way; and only when the functional processes are in good condition, can the essential substances be appropriately refreshed.

The opposites in all objects and phenomena are in constant motion and change: The gain, growth and advance of the one mean the loss, decline and retreat of the other. For example, day is yang and night is yin, but morning is understood as being yang within yang, afternoon is yin within yang, evening before midnight is yin within yin and the time after midnight is yang within yin. The seed (Yin) grows into the plan (Yang), which itself dies back to the earth (Yin). This takes place within the changes of the seasons. Winter (Yin) transforms through the Spring into Summer (Yang), which in turn transforms through Autumn into Winter again. Because natural phenomena are balanced in the constant flux of alternating yin and yang, the change and transformation of yin-yang has been taken as a universal law.

Traditional Chinese medicine holds that human life is a physiological process in constant motion and change. Under normal conditions, the waxing and waning of yin and yang are kept within certain bounds, reflecting a dynamic equilibrium of the physiological processes. When the balance is broken, disease occurs. Typical cases of disease-related imbalance include excess of yin, excess of yang, deficiency of yin, and deficiency of yang.