Board Thread:Lore Discussion/@comment-71.226.242.68-20131113201112/@comment-25601191-20141030195935

"In my seminal work, "Chaotic Creatia," I described the means by which those creatures known to us as Daedra manifest themselves upon the mortal plane. It is this mechanism that makes it impossible to ever truly kill a Daedra, because they simply return to the planes of Oblivion and then project themselves back to the Mundus once again. The implication is that there are (and always will be) bonds between these planes and our own. This begs the question, however, if you kill a Daedra within its respective plane of Oblivion, is it then truly annihilated? What about if the Daedra is slain while within one of the Aedric planes of existence? I am fortunate enough to have had the privilege of engaging several Daedra on this subject and I can assure you that they are not forthcoming on this topic.

What I have been able to glean, mostly by way of observing their reactions to my suggestions, is that Daedra do not often, nor do they appear to care to, travel to the planes of existence dominated by Aedric influences. Realms such as the many varieties of Aetherius (Sovngarde being a prime example) do not appear suitable for the travel of Daedric creatures.

I would hypothesize based on this information, and from information gathered from other sources, that the Aedric planes do not share the same energetic tie to the Daedric planes that they share to one another and to the Mundus. Thus, it might be possible that a Daedric vestige slain in an Aedric plane cannot return to its home plane, and thus is left dead or simply trapped for all eternity. The irony doesn't escape me that if this proves true, then a Daedra can only truly die after it enters heaven. (Ah, how I amuse myself. All pure speculation, of course—but the time does pass slowly here, when it's passing at all. One must stay busy!)"

("Death" of Morphotypical Entities, by Doctor Rhythandius)

As theorized by the Doctor of Transliminal Mythomysticism, the Daedra may die under certain circumstances. But that must first be proven. Now, another quote from his researches:

As a Doctor of Transliminal Mythomysticism, I have long been interested in the soul/body problem, the reformation of the Daedric body post-banishment, and the formation of the body around the essence commonly known as the "vestige". Since our enforced relocation to Coldharbour, courtesy of Our Luminous Lady, I have had considerable opportunity to observe these processes first-hand, and am now in a position to confirm many hypotheses that, upon Mundus, were fated to remain mere conjecture.

It has long been understood that a Daedra, who lacks the Anuic animus known as the "soul," is not killed when its body is destroyed. A Daedra slain upon Mundus is merely "banished" back to its plane of origin, where its morphotype, or "vestige," gradually forms a new body, so that eventually the Daedra lives again. (This happens as well when a Daedra is slain in its native Oblivion.) Furthermore, we have long known from the Daedra themselves that their bodies are formed from the very stuff of chaos, the "creatia" of Oblivion, a shapeless but energetic material that accretes around a vestige until it conforms to the morphotype's inherent pattern.

Back on Mundus I had naively envisioned this creatia as some sort of misty, amorphous material swirling in a void somewhere. After our arrival in Coldharbour, it was some time before I realized that its ubiquitous pools of blue slime, the substance we've come to call "Azure Plasm," was in fact the form that creatia takes upon this plane. By extension, I reasoned that chaotic creatia takes a different but planar-appropriate form in every realm of Oblivion—and this theory was later confirmed for me by the rogue Xivilai known as the Sojourner, who has had direct experience of numerous planes of existence.

(...)

(Chaotic Creatia: The Azure Plasm, by Doctor Rhythandius)

As you may see, the Daedra morphotype slain in Mundus or in its native Oblivion gradually forms a new body. It eventually lives again. Let us do some experiments then. Let us take some daedroth essence and posit it inside aedroth substantia. If it become bound and unable to change then the Daedra can be "killed" inside Aedric Realms, for the deadroth essence will be unable to return to the chaotic creatia. But that's just a theory, as stated above. I really loved this part of the research:

The irony doesn't escape me that if this proves true, then a Daedra can only truly die after it enters heaven.

("Death" of Morphotypical Entities, by Doctor Rhythandius)