Okay, honestly this isn't much of a normal discussion or theorizing of lore, but rather just something funny I wanna share. Long time ago when I had the original Skyrim on my PC and before I even had a chance to get and play ESO... I made a fun little mod with the main idea of it being connected with Vaermina, the Daedric Prince of Dreams, Nightmares, etc... And I wanted to give the place some sort of unique enemy to it, something that could possibly look like Daedra of Vaermina and can be done with what I have in the Skyrim engine... Ended up using the black ghostly skeletons that you fight in a Daedric Quest for Meridia to do such that and just called them "Nightmares", or well... Nightmare RANK (Nightmare Archer, Nightmare Knight, etc. You get the idea). Gave them their own nonplayable gear and everything, and boom. Had me a main enemy type for the mod.
Thing is, I wasn't sure on how lore-friendly this could potentially be. For all I know, what I did is completely wrong and Vaermina's Daedra are something far far more crazier than just ghostly skeletons that can change shape into a mortal's worst fear... But, the other night I did a quest in ESO in The Rift. A quest related to Vaermina and about her "demons" as the citizens put it... Vaermina's nightmares for the citizens being well...
It made me laugh. I took a shot in the dark a long time ago and just finding out now that it is technically lore friendly or potentially anyways. This is ESO after-all and this game isn't necessary lore friendly in a lot of it's own way, after-all. Still, it made me laugh and thought I could share a funny lore realization moment with other people in the community.