There's no beliefs in Reality. Reality doesn't need a belief. Reality is just the way things are.
You don't have to believe in the way things are for them to be the way they are.
You have to believe that things are not the way they are in order to perceive things other than they actually are.
Once you get the notion or start to work with the notion that suffering in any form is caused by a misperception, and a misperception is caused by a belief, an idea, that's grabbed, that's believed...a conclusion....Once you get that very, very simple idea the whole way you look at things starts to shift.
http://www.youtube.com/watch?v=9OgeC-Q7HB8