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 AurobindoThe mind has these four levels: physical, vital, buddhi, higher mind. The Supermind is far above these.
Sri AurobindoThat within us which seeks to know and to progress is not the mind but something behind it which makes use of it.
Sri AurobindoThe navel region is the centre of the vital. It is from here that the movements of the vital rise upward. Above the navel and behind the chest is the centre of the play of emotions and below this takes place the play of the physical. Mulฤdhฤra is the base of the physical. In between the Mulฤdhฤra and the navel, there is another centre of the vital.
Sri Aurobindo