A very interesting article on why belief is not the most important thing to understand about religion:
"To be clear, I am not arguing that belief is not important to Christians. It is obviously important. But secular Americans often think that the most important thing to understand about religion is why people believe in God, because we think that belief precedes action and explains choice. That’s part of our folk model of the mind: that belief comes first.
And that was not really what I saw after my years spending time in evangelical churches. I saw that people went to church to experience joy and to learn how to have more of it. These days I find that it is more helpful to think about faith as the questions people choose to focus on, rather than the propositions observers think they must hold."