Song should take place in your body, including your internal organs such as the spinal column, hips, dantian and joints. Keep your body re-laxed but not flaccid or loose. The other thing is to keep your mind relaxed, leaving it free of distracting thoughts or concentrating too much on what you are doing, especially on the reactions of your body occurring in practice. Only in this way can you get yourself relaxed to the full.

Song applies to all aspects of qigong practice, with your breathing even, continuous, thin and deep, movements gentle and slow and mental activity peaceful.