Would anyone be willing to explain the exact interaction of gods and Creation? Do the gods embody things and concepts, or do they police them.?What about things that would fall in-between?
God: Bureaucrat, manager type. God of river makes sure the river flows where it should, doesn't overflow, doesn't dry up, is clean, ect.
Elementals: I am hazier on this, but I think they *are* spawned from stuff. Like, I vaguely remember something about forest fires spawning lesser fire elementals. I am almost certainly wrong about this, because its been like seven months since reading it and I can't find my freaking Games of Divinity book on this computer.
Incarnae: Sol is literally the Sun, Luna literally the Moon, Maidens I think are actual planetary bodies, but this could be a specific homebrew thing I read awhile back, I can't remember. Worth noting that Incarnae is more a political group than a power scale. Gaia, a free Primordial who sided with the Gods and the Exalted, is an Incarnae as well.
Primordials: Concepts on a cosmic scale. Malfeas is something like Kingship and Rule by Force, I think, and is a giant dyson sphere city thing. She Who Lives In Her Name is Hierarchy, she embodies the concept of it. I do not believe the deaths of Primordials impact their concepts, although the death of a concept *will* harm its Primordial. I think one book, dunno which one, I think it mighta been Games of Divinity, or Ghosts and Demons, mentioned that were hierarchy utterly removed and the universe reduced to meaningless anarchy, it could be enough to make SWLiHN a Neverborn. Personally, I'm kinda iffy on that, though. I kinda feel a Primordial should be more able to go "NOPE. ANYTHING NEAR ME IS MY PRINCIPLE. SO LONG AS I AM, SO SHALL MY PRINCIPLE BE." But I do know at least one book contradicts me, so this is just my own headcanon.
Yozi: Imprisoned Primordial. There's no serious meaningful difference beyond the Yozi being mutilated and locked up. They're still Primordials, just leashed ones.
Demons/Daeva: Sub-beings of the Primordials/Yozi. 1st Circle demons are basically toys made by Second and Third Circles, and are basically just weak gods made for a specific niche.
Second Circle Daeva/Demons are very potent, able to compete with, though generally not actually *beat*, somewhat experienced Exalts. My Sidereal and his equally Siderealish friend could individually kick the crap outta Sondok, one of the more combat focused Second Circle Demons, with some effort (admittedly, they are like 380 something XP now, so they're pretty powerful).
Third Circle Daeva/Demons are more conventionally godlike. City-wrecking, army slaying beings of terrible power, mightier than any but the strongest individual Exalted, usually requiring whole Circles working together to defeat.