Macrocosmic energy is everywhere, and it passes through you constantly. Even as you sit reading this, this energy is passing through you. If you can learn to harness it, store it, control it and utilize it, then you can reach the realms of immortality as the Taoists learned to do many thousands of years ago. They also learned to use it for the purpose of healing others, and it is still being used for this purpose today. It is more dynamic than internal energy (Sheng Chi) and it can also be controlled through the mind. However, in this case, it is projected through the https://en.wikipedia.org/wiki/Third_eye, which the Taoists call the Golden Gate (Chin Men), and it is the first step towards the Supreme Ultimate (Tsui Kao Tsuihou).