The Sankean idea of pure consciousness and everything else separate from it is just the beginning, says Arjuna. Enlightenment is also a bit like that: settle down, focus on your breath then go into focus in your mind. Thoughts in the mind is the eye sense I am. And then you see in that I am also aware. From that awareness, I can't put it in words anymore. You have to somehow turn back towards its source. That's what's happened in enlightenment.