Belief is a funny
thing.  Fickle it is.  One day you have it, and the next day it is
gone.  And then, there is “knowingness.”  When you experience Truth, this solidifies
belief into something unchanging and solid. 
Then it is no longer a matter of whether you believe or not.  You simply know.  It is a fact in your library of experience.  And there is the key to moving from belief to
knowing:  having had the personal experience. 

Seek and you shall
experience that which you seek.  Ask and
it shall be given.  These are truths that
will lead you to knowing, and in the grandness of knowing Truth, you will find
peace.