Sri Aurobindo
Letters of Sri Aurobindo
Volume 1. 1933-34
1933-34
What exactly is the difference between the Supermind and the Overmind?
The Supermind is the total Truth Consciousness; the Overmind draws down the truths separately and gives 
them a separate activity – e.g. in the Supermind the Divine Peace and Power, Knowledge and Will are one. In the Overmind each of these becomes a separate aspect which can exist or act on its own lines apart from the others. When it comes down to Mind they turn into an ignorance and incapacity – because Knowledge can come without a will to support it or Peace can be disturbed by the action of Power etc.