There are many practices in yoga which teach awareness. To bring awareness in yoga practice, the yoga practitioner has to witness certain happenings or things like witnessing his own breath, witnessing his different parts of body etc. Such witnessing can develop his objective awareness.So also,witnessing one`s own thoughts,one can develop his subjective awareness.
Awareness is an independent identity. It is not dependent on mind or brain. Even when one sleeps, he has awareness. In the morning, when he wakes up, he says, “I had a good night sleep!” How he could know he had a good night`s sleep and he could repeat the dreams he saw during the sleep. It means one has awareness even in dream and sleep. Well, this can be substantiated very much during the practice of Yoga Nidra. So also, even in high states of meditation, one has awareness.
Dr.Mahesh Chandra Panda