The main driving force of Qigong spring tide is actually the source's pursuit of supernatural power. That is, special functions. There is an irrational national fanaticism. Specific functions exist, but the pursuit is wrong. Once you have a pursuit, you will go the wrong way. It is true that Qigong is regarded as a fitness exercise, not a special function. The fitness effect is really good.
Yan Xin Qigong is of course true. I have been practicing for many years, and I have the phenomenon of dragon bell work. However, it is recommended not to engage in self-priming work. The premise of paying attention to it is moral requirements. The higher the moral character, the easier it is to practice.