What is Yin Qi and what is Yang Qi? How to absorb yang qi

The primordial qi is produced by the essence of Yuan (the essence of parents), which is combined with the essence of grain and the natural clearing of qi in later generations to form the harmony of (essence, blood, body fluid and relaxation) and (defending qi, clan qi, nourishing qi, qi of viscera and qi of meridians). "Qi gathers to be healthy, and qi declines to die." Yin Qi dominates matter, Yang Qi dominates function, and Yin and Yang transform each other. Ci Hai: "Yuan Qi, also known as Yuan Qi, refers to the basic substance and activity ability of physiological functions of human tissues and organs", which is called humanistic metabolism in modern medicine.