As a child, while all alone, pretend that you are not who you think you are, but that you have suddenly woken up in this human body, and your memories of your whole entire life have just been placed in your head. Your real memories of your "real" life are gone. Your mom and dad are not your real parents, they are the parents of the child you've just been forced to occupy. You know you were just somewhere else a moment ago, but now you are here on this "Earth" thing, and you don't know how to escape and go back to your real home!
When done right, the shivers and black sparklies encroach, and you feel like you are nearing a precipice in the darkness. EEWWWWWW! -Bill beaty
I used to do something kinda like this all the time when I was younger...I mean not the whole "I'm an alien" thing, but I would contemplate existence and awareness and all that and "do I know I'm really me?" stuff. Weirdness.