7: The term "ring-pass-not" is used in occult literature to denote the periphery of the sphere of influence of any central life force, and is applied equally to all atoms, from the atom of matter as dealt with by the physicist or chemist through the human and planetary atoms up to the great atom of a solar system.  The ring-pass-not of the average human being is the spheroidal form of his mental body which extends considerably beyond the physical and enables him to function on the lower levels of the mental plane.