text: The lower dantian in traditional Chinese Medicine is where the primordial essence, Jing (精) , is stored. Jing is the basis for our physical existence and can be seen as DNA. At the same time, the lower Dan Tian is the place for Yuan qi (元氣)  the Qi that has not yet been divided into Yin Qi or Yang Qi. This Qi is much less physical and could be seen as the elemental existence of atoms and electrons before there are molecules. In the Ancient Texts of the Book of the Yellow Emperor (Huangdi Neijing ), the lower Dan Tian is referred to as both the seat of Jing (精) and the source of Yuan qi (元氣). Both can also be used side by side as an apparent contradiction.
  In this way, the lower dantian becomes the basis of all life, of your body (Jing 精) of your mind (shen,神) of the energy of life (qi, 氣 ) of your self-preservation, of your self-healing capacity, of your emotions with the basic fear / fear of life as a foundation .
  In qigong practice, the lower dantian, as the source of qi, is also used for storing qi, for transforming qi, for emitting qi, for returning qi, for releasing blockages of qi in the periphery.
  The area is associated to the tantric swadhisthana chakra In yoga philosophy, it is thought to be the seat of prana (compare with yuan qi) that radiates outwards to the entire body. This Chakra can be blocked by the fear of death, the bases for all emotions. Also this has the same similarity with the lower dantian