The energy required for human life is called Qi in Chinese Medicine, and it is the basis and source of power for life. The movement of Qi is not only a manifestation of vitality, but also improves disease immunity and longevity. Cultivating genuine Qi and promoting its movement can fully mobilize the inherent power of the human body to effectively fight against disease and aging, thereby achieving good health and longevity. Therefore, the relationship between the body and the genuine Qi can also be simply described as: if the genuine Qi is sufficient, the body will be in good health, if the genuine Qi is insufficient, the body will be weak, and if the genuine Qi disappears, then life ends.
According to modern medical science, there are 10 billion to 15 billion neurons in the human brain, and only about a billion of them are active. That is to say, 80% - 90% of the nerve cells are in a relatively static state and do not participate in activities. If some of them are malfunctioning, the entire nervous system will still work as usual, without any impact.
There are about 2,000 capillaries on the cross-section of the muscle of a square millimeter of the human body.
Under normal quiet conditions, only five of them have blood passing through. When participating in activities, there are more than 200 capillaries open to use, which means that 90% of the capillaries are often just stored in the human body. Another example is that there are about 750 million alveoli in a person, and the total area of contact with breathing is about 130 square meters, but the average person does not use so many alveoli, especially those who do not exercise, and many alveoli shrink due to long-term disuse. People who practice qigong only breathe 2-5 times per minute, but they have a clear mind and vigorous vitality. That is because the pranayama can mobilize the alveoli to actively participate in activities and promote the movement of Qi. However, these huge potentials in the human body are usually not recognized and rarely used. As a result, many people do not realize these potentials and suffer from conditions such as mental atrophy, muscle starvation, and alveolar degeneration, leading to senility.
We know that the human body is made up many billions of cells. The growth, development, aging and death of the body are all based on cell metabolism. So what is the driving force behind cell metabolism? It is the energy that is produced by the metabolic changes in the cells through the continuous supply of nutrients and oxygen from the blood circulation (namely Qi transformation). The energy is what we call “Qi”. According to the theory of traditional Chinese Medicine, the concentration and movement of genuine Qi in the human body has certain rules and routes. It replenishes the whole body rhythmically along the unique routes, giving life to the cells of each body system. This is the essence of the activities of the Twelve Meridians, the Fifteen Divergent Collaterals and the Eight Extra Merdians.
Qi runs through the body, from the internal organs of the body (heart, spleen, liver, lungs and kidneys), to the outside of the four limbs, with breathing movements in a certain direction to form small and large circulations. As you exhale, the Qi moves from the Conception Vessel down to the pubic region, while as you inhale, the Qi moves from the Governor Vessel upward to the chest, leading to the coordination between the heart and kidney, and regulation between water and fire. After the genuine Qi passes through the Governor Vessel, the Qi in the inhalation will rise from the Governor Vessel to the head, while as you exhale, the Qi will flow from the head to the pubic region. In ancient times, this small cycle was called small circulatory cycle. There are three Yin Meridians from the heart to the hands; there are three Yang Meridians from the hands to the head; there are three Yang Meridians from head to feet; there are three Yin Meridians from the feet to the abdomen. The Qi moves through Meridians from the chest to the hands when exhaling, the Qi moves through meridians from the end of hand Meridians to the head when inhaling. The Qi moves through Meridians from the head to the feet when exhaling, the Qi from the feet moves to the abdomen when inhaling. In ancient times, this big cycle was called the large circle of vital energy.