Sri Aurobindo
Letters of Sri Aurobindo
Volume III - Part 4
There are two different things. One is the consciousness actually going out of the body – but that brings a deep sleep or trance. 
The other is the consciousness lifting itself out of the body and taking its stand outside it – above and spread round in wideness. That can be a condition of the Yogin in the waking state – he does not feel himself to be in the body but he feels the body to be in his wide free self, he is delivered from limitation in the body consciousness.