Dantian Qigong is one of the Taoist practices of Qigong that is used to develop Dantian and perineal strength. We need Qi energy and its pressure in Dantian as the basis for most healing Tao practices, especially such as Qigong "Iron Shirt", Taiji-Qigong, and meditation. Lower Dantian is the main reservoir of energy in the body. This is the place where we store the energy we generate, collect, and absorb by doing qigong and meditation. By storing energy in Dantian, we can then easily access it if not, Qi dissipates and cannot be used by us.. Therefore, Dantian is also called "Ocean Qi" .. According to the theory of Chinese medicine, when the ocean is full, energy begins to overflow into eight special, or “miraculous” meridians. When these meridians are filled, Qi flows into twelve ordinary meridians, each of which is associated with a specific organ. Thus, Dantian is the basis of the entire energy system of the body.