I watched a show a while back (I believe it was an episode of "Through the Wormhole") where it showed psychological studies that attempted to find the source of religion. One study was done with children, asking questions like "why does grass exist" or "why are there sunsets." (I don't remember the exact questions, but these get the point across) children of a young age overwhelmingly preferred purpose-based explanations. Grass exists so that cows can graze. Sunsets are there for us to enjoy. In some people, these purpose-based explanations for things never seem to get weeded out and that is a big contributing factor in becoming religious.
I forget who this quote is from, but I've seen it here a few times and I think it sums things up nicely. I'd rather have questions I can't answer than answers I can't question. In some ways it's feels good to think you have all the answers and have the self-assurance that comes with that, but to me it's vastly more freeing and exciting to admit that you don't have all the answers, but at least the one answer you do have is that there's not some lunatic in the sky watching your every move just waiting to punish you for living your life.
On netflix, there's a 2 or 3 part miniseries on the meaning of by stephen hawking. If you're not into quantum mechanics or sciency stuff in general it might be a little much, but in it he uses our current understanding of physics and math to come to a rather satisfying conclusion (at least for me) as to what the meaning of life is. It's worth a watch if you're interested in that sort of thing.