I keep bringing this up in the AoK discussion, but it is slightly off-topic so I thought I would be better served asking in a new thread rather than continuing to ask when other questions were coming up. I'm curious about Aedric reaction to Daedric worship, especially where it pertains to Mer. The specific question I had in the other thread related to the records of Ayleids summoning Daedra as minions in their armies and harvesting magicka directly from Oblvion, as well as communing with the Daedric Princes (such as Meridia). According to the Imperial accounts, the reason for Akatosh's pact with Alessia to shut down Oblivion was to prevent the Ayleids from receiving Daedric aid to combat the rebellion. Whether or not this was a major reason for Akatosh's involvement in the rebellion seems to be a non-question as far as the sources are concerned, though, so I'm still rather curious about it. Would the Aedra react to Daedric worship (especially among those that nominally worshiped them) like the Israelite God reacted to the golden calf? Or was Daedric worship something that the Aedra accepted as something that really didn't matter to them?

Side-question, since I can't find any sources for this either: Did the Ayleids start worshiping the Daedra before or after the Chimer exodus from Alinor? I'm wondering if the passage of the Chimer eastward (and probably through, or at least near to Ayleid territory) might have given the Ayleids the idea to start looking to Daedra for divine help.

I'd assume that the Aedra, particularly Auri-El and Trinimac, are not overly fond of the Daedra interfering with their mortals. The Daedra cannot know love, therefore they regard mortals with callous disregard. The Aedra's power is shaped by the belief of mortals. What good are those mortals if they choose to place their faith in beings who are not affected by it?

I get the feeling that "The Aedra's power is shaped by the belief of mortals," and your statement that the same is not true for Daedra, is probably one of the most important parts of your post. Is there any source in the lore to make that statement explicitly? I'd love to look at that angle some more.

I can't point out a text that explicitly says it, no. It comes from the idea that because the Aedra are no longer whole as the Daedra are, only they are truly shaped by mortal beliefs. The Daedra are Princes because they know nothing of sacrifice, and therefore cannot be Kings. Their creations are made from within themselves, unlike the Aedra who sacrificed bits of themselves to usher in the Mundus. It is why the Aedra are ancestors, while the Daedra are not. The Aedra live on through the mortals, hence the reason the Aldmer claim descendence from them.

I think that's right. Perhaps someone can explain it better.

The Aedra live on through mortals, and thus must accept the shape that mortals force on them? I do like this idea very much. Thank you.

Mainly I'm asking so that I can figure out how to realistically portray Akatosh's agreement with Alessia in a fanfiction, so if it comes down to it I can make it AU and be done, but I do much prefer to go through the hoops of lore if I can. It's a lot more satisfying to study it and learn it, and to make a story that fits in it, than just to ignore it. And it's definitely been a learning experience.

Do you know if there are any answers to my second question? UESP doesn't say when the Ayleids started turning toward the Daedra, and the Chimeri migration eastward is thrown under the rather huge heading, "Late Middle Merethic Era." Ayleids are mentioned as basically (though not officially) independent from Alinor in the "Middle Merethic Era" (under the same heading that explained the migration of Mer to Tamriel, in fact), but it said nothing about whether that separation was social and religious as well as political or not.

As I understand it, the gods that the people of Tamriel worship are basically echoes of the original Aedra, who died in the process of creating the Mundus. They are born of the beliefs of their worshippers, and they are "real" insofar as they can bestow blessings and interact with Tamriel through their avatars, but there's no objective reality to any of them.

But I'm not sure if that's right. This is kinda a confusing subject in the lore for me.

I'm not sure. They conquered Cyrodiil during the early 1st era, which obviously took place after the Merethic. My guess is that they separated shortly after the Chimeri exodus. With Auri-El's enforcer now chained to Oblivion, who was to stop them?