If we are going to find out something new, we have to be ready to admit we have been wrong all the time.

Think about this for a moment:  If you can perceive something - be aware of anything - in any way - see it, think about it, feel it, hear it, smell it, that something is not you.  You must be the one doing the perceiving etc.  You are the one aware of whatever-it-is.

If I have an opinion about my self, that "myself" is not me.   If I notice a thought, that thought is not me.

"I" cannot have any characteristics, because those characteristics can be noticed and described, so I must be the one noticing them, so they are not a part of me.

So everything we think we know about ourselves is just not a part of ourselves at all.  It's like clothes we put on. And even that simile doesn't go far because clothes have to go on a body and this "I" has no solidity.

What we think of as "the real me", or some such descriptive phrase, is not me at all.  It's a bunch of thoughts and habits of thought.  And what are habits but thoughts we habitually think.

Just what is this "I", then?  Seems it's just pure awareness.  It cannot have any characteristics, any distinguishable parts.  It can't be unique in any way, because that uniqueness could be described, I could be aware of it, so it cannot be a part of the awareness.  Eyes don't see themselves.

Seems this "I" is not personal in any way.  That's a difficult thought to have.  Perhaps this whole "I" business is just a gigantic illusion?