Everything comes at a price. We are as humans, love to endeavor into the unkown. I can't imagine a world without religion. On the other hand, I think the demerits of religion, clearly outrun the merits, as we have seen in contemporary socities. I read someone saying, "Faith is illogical". It's true that logic contradicts faith. But,  faith is yours to keep - you believe it or you don't. Logic and faith cannot co-exist at the same time or on the same page. People have their own understanding of faith and religion. It's the center line between good and evil, and as some might say, right and wrong. There are miracles, around us and studies prove them relevant.  The list goes on. It's like things at the quantum level - we see a different pattern on how things behave, at the subatomic level. The point I'm trying to emphasize is that, our sole reason here is profoundly uknown. We have books and ideas, which tells us about our past, but if future remained consistent what we thought to be, we wouldn't have religion and faith around.