Haha you have to use your imagination to an extent :p I was just shocked how two completely different things had so many parallels. And I'll be sure to listen to that.

If you look up Joseph Campbell's Monomyth, you'll see there's an underlying similarity between most ancient stories of light vs darkness present in myths and religions around the world. Bungie are drawing upon this symbolism as they have done before with Marathon, Halo etc.