My understanding of the bible is that Jesus made it possible for us to have what is in store for us after we die. He flat out says that the only way is through him.
From what I hear from non extreme type religions, is that is all that is required. I imagine a person could have different religions, different viewpoints etc, but it all comes down to belief and accepting Jesus as our savior. I know that sounds different, and sure feels different to even say it.
So, perhaps there is no religion that has "The Truth."
Then again, if one does not believe the bible at all, or in a God, then it really doesn't matter. Me personally, I would rather error on the side of caution. I have no reason not to believe the bible, and that everything comes through Christ. Don't think I want to know the option if I am wrong.