Steps:
1. Lie on the mat, chin slightly retracted, forehead lightly touching the ground, hands on the chest side, elbows clamped backwards, and body clamped;
2. Push the instep hard and stretch your toes backwards;
3. The next time you inhale, slowly lift your body off the ground with your back strength. The next time you inhale, let your torso rise with your chest, touch the ground with your pubic bone, and stay for three breaths.
4. On the next exhalation, slowly lower your body back to the ground and repeat the action once or twice.