I believe we have spirits/souls of some sort; because I have far too many family members and friends who I personally find credible who have had experiences with ghosts. Including myself, to a certain degree.
I believe in an afterlife of some kind, again because of the ghost thing.
And I believe in reincarnation [though not karma], after extensive research [spent like two years researching it] and, well.. I'm tired and don't feel like repeating what I said in
this post, lol.
I have a few other slightly more 'out-there' beliefs that I don't feel like getting into here, but those are my main ones. I tend not to believe in anything without scrutinizing it first, until it stands up to my own standards. I've gone through many a personal crisis after learning new information that puts into question a previously-held belief; however, either the belief stands up to the new info or it doesn't. I don't like living in denial so if I find contradictory evidence, I have no problem taking it into account. I don't consider myself the kind of person who is irrational, but I also don't think spiritual beliefs have to be irrational.