In the spirit of calling ‘it’ whatever I will, I call it a reason.

You hinted at it youself: "God is a metaphor for everything in nature that we cannot comprehend." As I've written elsewhere (https://johnnyroneill.medium.com/a-reason-78c12b8e0fec):

“‘God’ has served as ‘a reason,’ albeit without explanation, for millennia, and still does for many of us (‘God knows’). And isn’t that what faith in any god is all about? A reason? Faith that there is a reason? That there is meaning? We don’t know the reason, but we have faith that there is one? We use ‘a reason’ to build a story, each of us does, of who we are, how we got to where we are, to discover, predict, experience who we are. Having ‘a reason’ is our way of making sense of ourselves. Without it…what are we?”

Thanks for the read!