If I were you, I wouldn't sit there waiting for a wise man to explain the mystery. Since their stories don't match, it would seem that all of them, except one, have it wrong. Dang! Bad odds.
You can't really categorize me as a heathen. An agnostic. Certainly not an atheist. I believe it all. All of the beautiful stories show up in all of the major religions, in some form. Now, I don't buy it all in literal terms. If you do, fine. We're all looking for the same truth.
Embrace the beautiful stories of this season and share your stories and your love.