What's at the Bottom of the Idea of a Transcendental Value?

i wanted to approach that staying out of the metaphysical domain as much as possible, because you can claim anything you want from a metaphysical perspective. And so people will say, well, why come up with the hypothesis of god? For example, god could be anything. There's a satire, the flying spaghetti monster, right? Is a classic satirical representation of a deity that the atheist types used to buttress their arguments. So then the question might be, what's at the bottom of the idea of a transcendent value?...