Qi

Energy and every phenomenon in the Universe is a manifestation of Qi. When Qi is condensed it can give rise to matter and when it is dispersed it gives rise to energy. The Qi in the body can assume many forms and roles but the Qi is essentially one.

A quote from Chang Cai explains the proceeding phenomenon in the body; " Every birth is a condensation and every death is a dispersion. Birth is not a gain, death is not a loss. When condensed, the energy becomes a living being and when dispersed it is the substratum of mutations."

The Qi of the human being is a result of the interaction of the Heaven Qi and the Earth Qi.

" A human being results from the Qi of heaven and earth. The union of the Qi of heaven and earth is called a human being."