Sri Aurobindo
Letters of Sri Aurobindo
Volume IV - Part 3
Fragment ID: 14719
It is the waking mind which thinks and wills and controls more or less the life in the waking state. In the sleep that mind is not there and there is no control. It is not the thinking mind that sees dreams etc. and is conscious in a rather incoherent way in sleep. It is usually what is called the subconscient that comes up then. If the waking mind were active in the body, one would not be able to sleep.