Generally speaking, the main purpose of this form is to correct the imbalance of inner chi and the distortion of the human body. Through the various stretching, pulling, rotating and bending movements, one can enhance the physical Hunyuan chi of all parts of the human body, open both the chi channels and key points (apertures), build a strong and well-shaped body, relax the essential joints and junctures, activate the true chi, transform both the body and the mind, develop intelligence, and finally lay a solid foundation for further Qigong practice.

The latter is focused on enhancing the transverse flow / passing of the inner chi across the channels while the former on the longitudinal passing / flow of the inner chi. Both are indispensable in Body & Mind Hunyuan.

Prof. Pang mentioned once that Body & Mind Form is the most efforts-taking form among all the six steps of dynamic Zhineng practice. One usually needs practice it twice a day (better the 90-minute form for healthy practitioners) for more than two years before one can master it and skillfully meet the requirements. The Ninth Posture is the check criteria to see if one has reached a certain level. The requirement is to skillfully and smoothly perform this posture from the beginning to end without falling sideways in good balance and with both eyes completely closed. It’s absolutely not easy. However, below are some tips to help:

1. Relax both the body and mind.
   
2. Do it correctly, slowly and smoothly. The lifting upper leg should be flat and withdrew to the back, connecting the leg with Mingmen in your visualization. As you are rotating the toe and sticking it up and down, consciously connect Yongquan (center of the foot) with Mingmen as well as the whole body, it is so called "Sinking chi into the Lower Chi Center".
   
3. Balance your head, hold Baihui upright, it is the key tip to balance the whole body throughout this practice.
   
4. Keep the mind / attention inside the body. In Level Two, it stresses internal hunyuan. So visualize your "figure" practicing within your own body.
   
5. Practice this posture as much as you can to enhance your ability of chi balance. You may train yourself by doing it separately from the other nine postures with both eyes opened in daily life, taking a break, watching TV?Just to experience and observe the sensations. But try to close your eyes as much as you can when you practice the entire form.

1. Relax the upper limbs, keep the attention inside the arms, don’t use clumsy forces, "order" the inner chi to "clear out" the arms from the shoulder blades to the fingertips.
   
2. Keep in mind the requirement ?"the out-stretchings and back-withdrawings of the big joints are simulating the crawling of a snake, while those of the small joints are just wormlike movements".
   
3. The two arms should move all together ?simultaneously and in the opposite direction. For example, when the right shoulder (leading the right elbow, wrist and the whole right arm) withdraw back to the spine, the left shoulder stretches away from the spine as if "pushed out" by the chi from the right shoulder, vise versa.
   
4. Practice as much as you can. Only when the inner chi can flow freely from the back to the shoulders and finally to the fingertips, this movement can be performed skillfully and gracefully.

Yes. At advanced level, practitioners are required to observe and experience the "key apertures / points" while performing the practice. The layout of the key apertures / points include The Big Seven Stars, The Small Seven Stars and The Upside-down Seven Stars.