The meaning of "avoiding food" has been circulated among practitioners and the general public since ancient times, and they have achieved self-sublimation and in-depth understanding of practice. Bigu, also known as "Quegu", "Broken Valley", "No Valley", "No Valley" and "No Valley", does not eat grains, eats gas and absorbs natural energy. Taoism used to be considered as a way to cultivate immortals.

Now it is health coaches Zhang and Ding who use energy to cultivate their bodies and minds.