Board Thread:Lore Discussion/@comment-4649443-20140501083904/@comment-25047024-20140501110804

I don't really understand your theory.

Alduin is the World Eater. He's destined to eat the whole world at the end of each Kalpa (basicly resetting it). The Last Dragonborn was destined to stop him from trying to enslave all mortals again (which he was never supposed to do, which is why he has to be destroyed). It's unknown what happened to Alduin(s soul) after the LDB defeated him in Sovngarde. He might return, or the LDB might have managed to break the Kalpic circle.