I had proffesors at uni who teach econometrics, finance, stuff like that and they believe in God. Kind of strange.
I think i said that believing in God is a big bonus on a discussion about depression. But it is anywhere a bonus. That's because if you have a problem you think there's someone there who helps you, if you are lonely you talk to him (how funny is that?), if you're broke and have cancer you'll go to Heaven, stuff like that. That's why faith makes it all easier. And that's why faith was invented in the first place. To make live livable.
I believe that life has no purpose. Do you think the universe gives a fuck you ever lived and what you did? So my motivation in what i do is that it doesn't matter anyway. So i might as well do something i want.
Anyway, faith=way of explaining something that can't pe understood. Is like giving an ameoba a laptop to surf the net. We can't understand everythink. And if we don't we invent all kind of [avoid saying the word for the purpose of not offending religious persons] to explain it. 3000years ago egiptians had a God for the Sun. Now that we actually know what happenes there who believes that Sun is a God???
Final conclusion: don't waste your time thinking about this things, you are too stupid to understand them.