Stand straight at the waist, slightly bend your legs and relax. Straighten your whole body first. At this time, you can feel your waist straight forward, and then your legs bend slightly immediately. As long as you bend slightly and relax, you can realize that your waist is no longer straight forward, but slightly backward. The ideal state of the waist is between the two, and it can be naturally vertical without force.
The posture of all parts above the waist is closely related to the posture of the waist, that is, how to adjust the posture of the whole spine. Relax your shoulders, hang down your arms naturally and stick them on the outside of your legs. These are very simple, what is important is the cooperation between cervical vertebra and lumbar vertebra. If the waist is forced forward, it will help the cervical spine to lean back and help the head to be put back; If the waist is kyphosis, the cervical vertebra will easily lean forward and the head will also lean forward. The effect of this spine posture must be realized when the whole body is relaxed, and it will be easy to do. The reasonable posture is that the whole spine is naturally upright, not completely straight, but slightly bent. So how to judge the standard of upright and slightly bent, with the help of the head! The head is heavy, and when it is completely relaxed, it will naturally press down and tilt. Therefore, if the posture of the whole spine is correct, the head will naturally stand upright, neither leaning forward nor leaning back, showing a natural straight state without exertion, that is, the head will be "placed" on the cervical vertebra.
A person standing at the pile site has a center of gravity a bit like a flat-pointed triangle, and his head should be in an upright position. Yin and acupoint are in a straight line, and the center of gravity is finally shared with both feet and falls on Yongquan point. The feeling is that there is an ant at the bottom of each foot, and you can't walk away or step on it.