In all spiritual schools, regardless of culture, it was known that the physical body needs to be prepared for spiritual practices. The vascular body must be ready to receive awakened energies. The opened energy gates can release spiritual potentials, but the physical body must be able to store them, otherwise the gained "consciousness" will evaporate again.
Ancient Taoist wisdom speaks of the bow and the string that, stretched across the bow, gives the arrow the power to fly. This wisdom was always applied to the human body by the ancient Taoist masters.
The tendon exercise sequence developed by Grandmaster Mantak Chia addresses this very principle. No matter what style or form of Chi Kung (Qi Gong) one practices: When you want to generate energy, you get it from the ground, through the structure of the legs, from the spine, through the shoulders and arms into the hands and fingers, where it finally manifests.