metaphyisal is essentialy things that exist because when they are described an image is conjured, everyone shares some kind of general idea on what this thing is be, but these things have no proven physical presence. For example Santa Claus A fat guy in a red suit who is always happy, Goblins little green ugly things that are good for low level charcthers to get xp, the tooth fairy takes your teeth and leaves you money, Pamela Anderson's boobs because almost everyone rembers them being bigger and on and on and on

there is no likeing to believe something you either do or you dont there is no wishy wash in between if you need help with this concept ask Yoda he will tell you "do or do not there is no try".

the finding out for yourself idea is assume can someone tell me where this came from exactly how would one do that, A whole lot of people for a really long time have been trying to accomplish this feat togther how in the hell could anyone do it on there own