After a thorough examination of whatever we think we are starting with the body, the physical self. How do you know the er, what cannot be objectified? It is beyond anything that you know. You clearly see whatever you think could be, i is not i. Even this eye, the feeling of eye, this mental function, the ego, even that is not i because i am aware of it. It's other than the known, other than the so in this way, it has been pointed out.