God teaches: It is necessary to use the breath to enter our body, the Chi-Hao Nhien from the Anterior Heaven. Religious practice and meditation should be based on breathing to circulate Duong Chi throughout the body (DTCG page 46). This recommendation is addressed to all believers, especially those who practice meditation ataractic based on the absorption of cosmic breath intended to unify the Three Treasures Eating for energy. About air considered heavenly food, science can help us have a concrete idea of its effect beneficial or harmful to our health.
This is what we want to expose in this chapter.
From life to death, as man continuously captures cosmic energy (air) and terrestrial energy from food to synthesize its own substance (physical body) and produce its own energy. Su Wen (chap.25) said: Man lives through the great energy of Heaven and Earth. The combination of celestial energy or air (Thien Khi) with the earth energy (food), is our daily diet. The cosmic food or air movement also induces Am Duong or acting on the mechanism of energy in our body.
1. The position of man in nature
Recall what happens in nature: the earth is negatively charged, the ionosphere, at very high altitude is electrically positive. In between, the atmosphere is a poor conductor in which man lives. As our energy body does it work as an appliance with a negative (Am) is the feet grounded by the acupuncture point Tuyen Dung (R1) and positive (Duong), the peak of Head to the acupuncture point Bach Hoi (DM20) called Huon Do Cung or Gate of Heaven.
This is from the position of man between heaven and earth that Su Wen (chap.25) says: Man is the most precious of beings that exist between heaven and that covers the Earth door. He lived through the great energy of Heaven and Earth. In other words, the existence and development of man is directly related to the cosmic energy of the sky (air) and terrestrial energy from food.