Sri Aurobindo
Letters of Sri Aurobindo
Volume IV - Part 2
Fragment ID: 14010
I suppose the ego came there [into human activity] first as a means of the outer consciousness individualising itself in the flux of Nature and, secondly, as an incentive for tamasic animal man to act and get something done. Otherwise he might merely have contented himself with food and sleep and done nothing else. With that incentive of ego (possession, vanity, ambition, eagerness for power etc. etc.) he began doing all sorts of things he might never otherwise have done. But now that he has to go higher, this ego comes badly in the way.