Third, the modern materialist dialectics basis of Health Qigong
Modern materialist dialectics is the science of the most general laws on the nature, society, sports and the movement and development of human thinking. There are three basic laws of materialist dialectics, namely the law of unity of opposites, the interconversion of quantitative change and qualitative change and the law of negation of negation. The modern materialist dialectics has laid the theoretical foundation for Health Qigong.
1. The unity of opposites as Health Qigong laid the foundation of modern materialist dialectics. The law of contradiction is the core and essence of materialist dialectics. In the exercise of Health Qigong, there are many contradictions, namely the contradictions between practitioners and the environment, the contradictions between the methods and practitioners, the contradictions among the Three Regulations and the contradictions between the mind and qi, etc. in which the contradictions between the mind and qi is the most basic contradiction. The practice process of Health Qigong is the process to resolve this contradiction.
The relationship of qi and mind is the unity and opposition. First, qi determines mind, there will not be the mind without qi. Because that（1）qi is the basic substances to constitute the body, which is the basis for the existence of life, and the material basis to the formation of mind. (2) Qi can mobilize the body and warm the human body. (3) Qi plays a role of generation and transformation on the human body. (4) Qi plays the controlling and regulating role in the body. (5) Qi plays a defensive role in the human body. (6) Qi plays a role of repairing the body in the human body. (7)Qi plays a role of guarding and sterilizing in the body, etc. In short, people cannot survive without qi, so does the mind. Consciousness is the reflection of the material world by the functions of the human brain. It is impossible to conduct conscious activities for the human brain without qi. Therefore, in the opinion of materialist dialectics, qi is primary and objective. The circulation qi in the human body is the basis to generate the awareness.
Secondly, once the mind has formed, it has a dynamic reaction on the qi. The dynamic role of mind on qi represents in the following aspects. (1) Consciousness can control the physiological and psychological activity in the practice through the human brain, so as to mobilize qi of the body, producing a huge efficiency. (2) Mind can guide qi by the action of the human brain, so that qi circulates along a predetermined direction in purpose as planned. (3) Mind can react upon qi by the action of the human brain. The so-called “transforming ferry into essence, transforming essence into qi and transforming qi into spirit” in the traditional Health Qigong is conducted under the counteraction of mind, to cultivate vitality through the exercises, achieving the effects of keeping fit, disease prevention and longevity.
2. The rule of exercising Health Qigong. Anything or any phenomenon is not accidental, but there is inherent necessity and regularity. The law is the relationship of the nature or the relationship between the natures.
There are also some rules in the practice of Health Qigong, which should be based on the circulation of qi in the human body, otherwise, exercisers may go astray. The law of the circulation of qi is that qi flows regularly through the meridians, blood and body fluids in the human body.
What are the laws in the practice of Health Qigong exactly? It needs to be further explored by the academia. I believe that there are the following rules.
（1）Mind guiding qi and the interaction of mind and qi. There is a basic contradiction in the practice of Health Qigong, namely mind and qi. Mind and qi are essentially and necessarily linked, and their interaction has formed the rule of the practice of Health Qigong.
Seen from the materialist dialectics, qi is primary and objective, the circulation of qi in the body can't be changed by the human will. And the mind (consciousness or ideas) is secondary and derived. The primary and secondary relationship between qi and mind cannot be reversed or confused.
However, the contradiction between the mind and qi has an absolute sense but only within a limited range. The matter and consciousness can be transformed. The materialist dialectics believes that the material can be turned into spirit, the spirit can be turned into material. In the practice of Health Qigong, qi determines the mind. However, the mind can play a guiding role on the qi, which is a rule for all people. Nothing but qi of the exercisers of Health Qigong guiding is more strongly.
The mentioned "mind guiding qi” is in accordance with the laws of the circulation of qi in the body. That is, not all the Daoyin of the exercises are correct. Choosing those correct exercises to practice will have a good effect, otherwise it will not only be useless but harmful.
(2) The practice of Health Qigong should follow the rule of Ren channel descending, Du channel ascending, as well as the clear air ascending and foul air descending. Qi circulates in the twelve regular meridians and the eight extra channels, foul air descending along the abdomen and clear qi ascending along the back. Starting from Dantian, Qi flows down to the perineum, divided into two portions, respectively along the three yin channels in the inside of the leg, and down to the Yongquan point in the sole center. Then qi flows to the heel, and goes upward along the three yang channels in the outside of the legs to the perineum, and then goes upward along the Du channel through Weilu Guan, Jianji Guan to the Dazhui point, and qi is divided into two parts again, respectively going through Jianjing point and along the three yang meridians of hand in the outside of arms, qi flows through Laogong point and along the three yin channels in the inside of the arms to Dazhui point. Going upward to the bottom of auricle, qi is divided into two parts again, respectively going around the auricle from behind to front and back to the original place, then flows to Yuzhen point and Baihui point. Going to the Huizhog point, namely the upper Dantian, i.e. ophryon between the eyes, qi is divided into two parts again, respectively flowing along the outside of the eyes and collecting at the front of the ears to Yingen point, and connect Ren channel through tongue touching palate. In this case, qi flows to Ren channel from the Du channel through Tiantu point and Tanzhong point, qi sinking to Dantian finally. Qi goes and returns in such a circle continuously, thus forming a regular circulation.
(3) Perseverance and the interconversion of quantitative change and qualitative change. The law of the interconversion of quantitative change and qualitative change is one of the basic laws of materialist dialectics, which is also the basic law of the practice of Health Qigong. Xuncius in the Warring States period said, “A journey of thousands of miles may not be achieved without each single step, just as the enormous ocean may not be formed without every brook or stream”. A great many grains of sand grouped together to form a pagoda. The quantitative change is the necessary preparation of qualitative change, and qualitative change is the inevitable result of quantitative change. It shows that any changes all start from the quantitative change. It cannot achieve qualitative changes without the quantitative changes. After the quantitative changes reaching a certain stage, that is, beyond the scope of the degree, the qualitative changes will occur, which is the universal law.
Perseverance is very important in the practice of Health Qigong, because the fitness effect of Health Qigong cannot be achieved immediately, in which there is a process from quantitative change to qualitative change. Practice perseveringly can constantly enhance and enrich the strength of the body, clear the meridians and expel evil qi and pathogenetic qi. Over time, the vitality of the body is sufficient, and it will be able to clear the meridians and achieve the health and longevity purposes.
（By Cang Daolai）