I use transformation in a special sense, a change of consciousness radicaland complete and of a specific kind which is so conceived as to bring about a strong and assured step forward in the spiritual evolution of the being of a greater and higher kind and of a larger sweep and completeness than what took place when a mentalised being first appeared in a vital and material animal world. Mind, vital, physical are properly instruments for the soul and spirit; when they work for themselves then they produce ignorant and imperfect things - if they can be made into conscious instruments of the psychic and the spirit, then they get their own diviner fulfilment; that is the idea contained in what we call transformation in this yoga.
For a real transformation there must be a direct and unveiled intervention from above; there would be necessary too a total submission and surrender of the lower consciousness, a cessation of its insistence, a will in it for its separate law of action to be completely annulled by transformation and lose all rights over our being.

Nature shall live to manifest secret God,
The Spirit shall take up the human play
This earthly life become the life divine.