Eckhart Tolle explains how constant thinking and identification with your thoughts keeps you unconscious. The voice in your head is a conditioned pattern, not who you are. Waking up means recognizing this voice and stepping back from it.
The voice in the head is the involuntary, conditioned, incessant thought processes that go through your mind all the time. This is normal human existence. And this constitutes the person. Complete identification with those thought processes plus the emotions. Complete identification with that is the un awakened or spiritually speaking, the unconscious state of living in this world. You are just a conditioned entity. You're like an actor that has learned his or her script. The actor is on stage acting out the script. But Noga realizes that he's acting out the script because he or she is completely identified with the script.