Practice formula: people are quiet and worried at night, and want to keep the seven secrets of Dantian Seal. Breathe slowly and build a magpie bridge, as light as a swallow floating in the sky.

From the formula, we can know that the time and environment of practice, as well as people's thoughts, breathing and body are all described, which meets the requirements of the formula. It is the best situation to practice the twelve-guide regimen.

The advantage is to cultivate one's mind and nature. The biggest feature of Qigong is to adjust the balance between body and mind. All the techniques are similar but the same.