It-ogo, you were looking for a slogan for the Empyrean? How about something like, "Light shining over all the world." or "Sun banishing Shadow." or some such?
That's just the point, though: The Empyrean
aren't all about the sun or banishing the shadow. That's a large part of them, yes, but the light motif belongs to the Malakim (who, granted, have a strong connection to the Empyrean). The Empyrean religion is dedicated to wisdom, understanding, and cooperation.
Regardless, you shouldn't even
have to think up a slogan for a religion. In a world as detailed and intricate as FfH, you should know it immedieately. When I think of the Veil, I immediately picture the savant, corrupt and tainted in his pursuit of power, striking bargains with dark forces in a shadowy room outside the public eye. When I think of the Fellowship of Leaves, I immediately think of the elves and druids calling the forest to fend off intruders. When I think of the Empyrean, I can't picture anything. I have no idea who they are or what they're supposed to do beyond a vague description in their 'pedia entry. To be honest, they look like some poorly though-out attempt at making an unambiguously "Good" religion. I hate typing that, because I know it's not true: The dev team has put a lot of work into this world, and I know that everything has its place. Nevertheless, the Empyrean really does look like it was tacked on as an afterthought to balance out the Council of Esus.
I think this can, and should, be fixed. Most obviously, the 'pedia entries need to be filled out (especially for the Ecclesiastic: those
Reflection on the State Cults excerpts were the first things I read about the religions). I'd also like to see somebody who died because of the Empyrean showing up in Elizabeth's vision from Cassiel's story: The Empyrean has to be viewable from a different light, or it's too idealistic for Erebus. More importantly, however, it needs to have a distinct mechanical effect on gameplay. Right now, it's just a pale imitation of the Order with a few anti-Shadow spells, and unless you're at war with Esus or the Calabim, there's not much of a reason to follow it.