1. General requirements for standing pile breathing: take the principle of smooth, comfortable and natural breathing. Heshun: Breathe steadily, lightly, continuously and slowly. Don't hold your breath.

2. At first, it is natural breathing, then it transitions to positive breathing and then to reverse breathing. "Relaxation, breathing and intention" are three important aspects of standing piles. Breathe harmoniously and be calm, you will be healthy. If you are not nervous, you will have a smooth breath. On the contrary, the heavy heart is lost in nature. Strengthening and aggravating the mind will make people tired, irritable and dry, which is not conducive to entering the working state for a long time. These three things interact with each other, so practice with a relaxed attitude, not as homework.

Generally speaking, beginners breathe naturally at the beginning. With a certain foundation, it will naturally transition to abdominal breathing. When their foundation is further solid, they will transition to reverse abdominal breathing. This refers to phased changes, but not necessarily at every stop. The specific mastery must be natural, comfortable and smooth, and don't pursue it with strong consciousness or force. When you feel that your breathing is not smooth, just let it go and resume your natural breathing.