I'm afraid I don't understand those who haven't practiced. I practiced a method of moving qi in my twenties, and I practiced it by myself according to this book. I think this job is good for my health. Bing doesn't mean that after practicing, I will be like a secret book of martial arts, but it will help people's spirit and breathing. Although the second pulse of Ren Du is usually open, it may be different, just like a faucet. Although Ren Du Er mai is usually open, the degree of opening is different. By practicing this skill, you can speed up the circulation of qi and blood, keep the vitality in your body, and get rid of decay and create new ones, just like the water in the river. If the circulation is good, the water is very clear, because water has a process of gas exchange, and the truth of the true qi operation method is the same as that of the water in the river. If the circulation of qi and blood is good, the impurities in the body will be removed. In addition, there is the concept of harmony between man and nature. What is harmony between man and nature? Bing is not that difficult to understand. Qigong Qigong is to refine qi, the atmosphere is under pressure, and the internal organs of the human body are connected with the atmospheric pressure from the inside out. If young people are healthy, their internal organs are unobstructed, and their qi and blood are connected with atmospheric pressure, there will be no big problem. The aging of internal organs, the contraction of pulmonary blood vessels and the pathological changes of gastric capillaries will all cause the docking of human body with the external atmospheric pressure. If the docking is not good, of course there will be problems. The most direct problem is that the impurities in the blood can't be filtered out of the body well, which leads to the acceleration of aging. When practicing this skill, I think it is best to roll up my legs, because rolling up will slow down the blood circulation of my legs. There are no internal organs in my legs, but the internal organs are in the upper body. At this time, blood gas basically circulates in my upper body. The advantage is that qi and blood gather in my upper body for the lungs. When the blood in the gastrointestinal tract is slowly filled with blood, it will naturally replenish the blood that belongs to it, because some body areas will be short of blood supply because of illness or fatigue. If you practice this skill cross-legged, this situation will be improved. Of course, you need to find some ways to practice this skill slowly, but only if you are extremely relaxed physically and mentally, and then you will get good results with certain skills. Qigong inflates the body slowly through breathing, which is a slow process. By inflating, some capillaries with insufficient blood supply are unblocked, so as to maintain weak links and achieve the purpose of fitness. Of course, the highest state of Qigong is that the essence and qi circulate to the head, which may be that the essence and qi return to deficiency. The process of practicing qigong is to slowly accumulate qi into the body. When qi slowly accumulates from the lungs to the stomach through breathing, to a certain extent, it will accumulate in the intestines and then pass through the perineum and spine to the brain. Of course, this process is very slow. Don't rush for success, force luck. You should relax and follow the method step by step. The main points of this method can be found on the Internet. As long as you calm down, everyone will gain something.