I'm a big old heathen yet you all still associate with me just fine. It's not that I don't believe in God, or heaven, more accurately. I just don't think there's any chance that some all-powerful being is going to sit there and criticize my every life choice to determine if he lets me in. If he's a loving and all powerful deity, then shouldn't he accept us with our flaws...even if that flaw is choosing the "wrong" religion?

Religion ranting aside - there's a version of that prayer done by Sarah McLaughlan that you'd probably like. :)