Quick Notes

Elementals

• Elementals should probably incorporate Aether/Nether into their belief system, since they came from one and are flowing to the other
• To elementals, the earth itself, while sacred, is clearly just the work of some grander architect, a cosmic source from which all elements flow
• They're unlikely to incarnate gods into individual form. They themselves are individual because they are emergent beings--otherwise normal elemental spirits imbued with individuality and human-like sentience, perhaps by contact with humans. Interestingly, they do not see this as an "elevation" above their less-sentient kin, thus it is not a "gift" from a higher being. They are children of the elemental world, and seek to reunify with it in death.

Sylvans

Animists, natch. Natural spirits abound, and the greatest of them are called "gods", even if they aren't so mighty they can crack worlds or birth stars, or whatever. Their religion is not concerned with how the world came to be, let alone the cosmos. Their traditions are somewhat challenged by modern science, but since they don't contradict it, they actually meld with it fairly well.

Humans

As ever, humans see themselves in the cosmos. Originally, they did as humans do, seeing gods among the stars, adopting a god of their tribe or a city, building pantheons, etc. Each of the greater human tribes, even as they formed this or that nation, tends to keep its basic pantheon intact.

In modern times, they have noticed that the pantheons have much similarity--the identities, the roles, even the names--and many believe that there is a single proto-human pantheon. Some neo-pagans even go as far as worshipping these gods, although that is seen as somewhat gauche, as the pantheists are just not that religious these days, given the rise of science and reason, and the lack of any obvious manifestations of the divine.

(is there a Lord of Light? A being amongst the Aether?)

(how about a Machine Intelligence?)

Meta

What's the foundation of religion? What's the "truth"? Does belief create divinity? Was this world made, or did it evolve? Are there gods and titans? Was it all aliens? Is there room for divinity in a world that definitively evolved through natural forces?

I'm inclined toward having celestial beings exist, which can be proven to exist, but their existence does not prove any particular religion correct.