These are ancient secrets have been passed down through the ages and until recently have not been available to the public.
The origins of these practices are from the Ancient Egyptian mystery schools and African Spirituality. One need not look any further than the Neter (God) Min to see that sexuality was an integral part of their Spirituality.
This book isn’t historical, it is a how-to guide on the ancient art of semen retention which builds Chi/Sekhem/Prana in the body which then gets transformed into spiritual energy.
It is the root of all spirituality and religions.
The Vagina is the vortex from the other world into this one. We pass through it during birth, and can go the other direction during sex.