There are all kinds of gases between heaven and earth and the universe, which are energy that is free in air or objects. Absorbing and refining these free gases for your own use is the best way to improve your self-cultivation.
Although the way of collecting gas can assist some necessary actions, its process mainly depends on people's thoughts. The absorbed gas can enter the body from a certain point of the body, such as Baihui point and Laogong point, but inhaling from the point is only the lowest level of the art of inhaling, and it takes every pore and cell of the whole body to complete this inhaling process. However, it is easier said than done. Without proper methods and a high degree of understanding, I'm afraid I can't achieve great things in my life.
The highest state of collecting gas is that you have been integrated with heaven and earth, and you don't need to do much work at all. Those wandering gases will naturally act according to your idea. However, in order to achieve this state, we can thoroughly understand the mysteries and mysteries of nature. Only by knowing what nature is in heaven can we enter the underworld and escape to the space between heaven and earth to live a long life.