"The soul, the psychic being, is in direct touch with the divine Truth, but it is hidden in man by the mind, the vital being and the physical nature (manas, prana, anna of the Taittiriya Upanishad). One may practise Yoga and get illuminations in the mind and the reason; one may conquer power and luxuriate in all kinds of experiences in the vital; one may establish even surprising physical siddhis; but if the true soul-power behind does not manifest, if the psychic nature does not come into the front, nothing genuine has been done. In this Yoga, the psychic being is that which opens the rest of the nature to the true supramental light and finally to the supreme Ananda." (Sri Aurobindo)