Doesn't belief only come either through logical persuasion (and that's only a weak belief) or a predisposition of the spirit? Maybe you can foster belief through repeated acts of devotion– going to church, facing Mecca and praying five times a day, observing Passover - but "to hear the voice of God in your soul" seems like the product of more than just a conscious decision. I'm not saying that you're either born with it or you aren't, but you won't get much by snapping your fingers and saying "I believe."
What's the take of folks here?