What do you want to do sadhana for? The aim should not be the satisfaction of egoism: "I want to be a great yogi; I shall have so much power and with that power I shall establish myself in the world." All such thoughts must be thrown far away.
Sri AurobindoTrue knowledge is not attained by thinking. It is what you are; it is what you become.
Sri AurobindoThe 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.
Sri Aurobindo