The mind has these four levels: physical, vital, buddhi, higher mind. The Supermind is far above these.
Sri AurobindoWhat is required is faith. Man has body, life and mind but that is not all that constitutes man. He has risen to the mind as a result of evolution. Now a higher consciousness will be evolved - this I call Supermind. It is the instrument of the Divine Consciousness, the Truth-Consciousness.
Sri Aurobindo