What is the origin/nature and role of Ming Men ( GV4) in Qi Gong theory?
I'm trying to make sense of the conversion of Essence into Qi which seems to underpin much of Qi Gong theory. I'll try to keep my preamble brief but this is where i'm at in trying to piece this together...
It is said that Essence in its prenatal aspect is fixed and is instrumental in the unfolding of the life cycle, the maturation process. Whereas acquired Essence derived from physical, emotional, intellectual stimulation can modify the developmental process. Fine.
Prenatal Essence resides in the Kidneys and postnatal Essence resides in the 'external kidneys' (testes/ovaries) and is fundamentally the potency derived from within the hormonal system, the sexual fluids being particularly valuable.
Qi Gong seeks to convert Essence into Qi to vitalise the Zang Fu and illuminate the Shen.
I take it that this refers to the postnatal Essence?
Original Qi derives, itself, from the Essence and might be said to be Essence in a more dynamic phase.The catalyst for this transformation Essence to Qi is Ming Men.
What then is Ming Men, a yang aspect of Essence or Original Qi. What is its origin and nature? Can it be strengthened postnatally too.etc etc.