Qigong is based on the philosophical principles derived from the theory of yin-yang wuxing in the Book of Changes.

Qigong is based on the philosophical principles derived from the theory of yin-yang wuxing in the Book of Changes.

Yin-yang wuxing formulates the theory of the jing-luo --- that the human body contains vertical trunks (jing) and branches (luo). The balance of yin-yang wuxing is essential for peace, harmony and health. Diseases and ailments of the body occur when the balance of yin-yang wuxing is upset.

Qigong is the Chinese terminology for the system of breathing-control exercises. Literally, qi means "air", which implies a "life force". Gong means an art. Qigong is the art that benefits health and prolongs life.