The supramental transformation, the supramental evolution must carry with it a lifting of mind, life and body out of themselves into a greater way of being in which yet their own ways and powers would be, not suppressed or abolished, but perfected and fulfilled by the self-exceeding.
But what after all, behind appearances, is this seeming mystery? We can see that it is the Consciousness which had lost itself returning again to itself, emerging out of its giant self-forgetfulness, slowly, painfully, as a Life that is would be sentient, half-sentient, dimly sentient, wholly sentient and finally struggles to be more than sentient, to be again divinely selfconscious, free, infinite, immortal.
The psychic being and the mental being, Manomaya Purusha, are not the same. The psychic being is behind the mind, it is what the Westerners call the soul. It takes interest in the movements of the mind and the vital only when there is a harmony between these movements and the truth above. The knowledge of the psychic being is deeper.
The yogin becomes aware in part of the action of the supramental power organizing the lower vehicle (ādhāra). A part of it remains behind the veil and prepares itself.
There should of course be left a field of work for the sake of experiment but at all times one must remember that there will always remain open a possibility of err.