My Pilgrimage to the Spirit

April 25, 1932

The sleep in which there is a luminous silence or else the sleep in which there is Ananda in the cells, these are obviously the best states. The four hours of which you are unconscious may be states in which you have gone out of the physical into the mental, vital or other planes. When you say, unconscious, it may simply be that you do not remember what happens; for in coming back there is a sort of turning over of the consciousness in which everything experienced in sleep except perhaps the last or else one that was very impressive recedes from the physical consciousness and becomes as if a blank. There is a state of inertia, but that is when one gets into the subconscient, and that is very undesirable; but, it is not very likely that you are in this condition at night often.

Sri Aurobindo