An increased activity, which is stored in the physical permanent atom. An added coloring, which is stored in the astral permanent atom. A developed quality of strength, or purpose in action, which is stored in the mental unit. These are wrought into faculty in devachan. In this high state of consciousness each separate identity, though self-realizing, shares in the group realization, and therein lies bliss for the unit.
Separation is no longer felt, only unity and essential oneness is known.
There is little in their case for the Ego, on its own plane, to assimilate in the residue of incarnations, and hence the life principle withdraws rapidly from out of the mental form, with the resulting impulse of the Ego to reincarnate almost immediately. He has no interest in devachan. The personal Ego, of course, but beatified, purified, holy. The fact of his being reborn at all shows the preponderance of good over evil in his old personality. Hence all those who have not slipped down Into the mire of unredeemable sin and bestiality - go to the Devachan.