The Imperials were once the same people as the Nords though... when do you think their religious beliefs diverged from one another? Originally, didn't they believe in Sovngarde too? Could someone explain more about Aetherius?
Aetherius I believe, Sovngarde is the Nordic interpretation of Aetherius in their culture. Not sure if there's any lore information on the other versions of Aetherius like there is on Sovngarde though.
Aetherius is where a soul goes upon an individuals death, where it is then recycled and reincarnated.
I think places like Sovengarde and various Daedric realms are exceptions, for various reasons.
So the Imperials adhere to a belief in reincarnation? Do the Bretons believe the same, what about them? Do the people of High Rock share the Imperial religion and afterlife beliefs, or do they have a different system?
nah souls are recycled, cleaned and plooped down into a new mortal vessle, shor is just hoarding all the hero's he can til some awful fight or something