Board Thread:Lore Discussion/@comment-26895123-20150816032605/@comment-9212235-20151001172156

Because all the evidence we have, when looked at as a whole and not just the lines from Skyrim, says that Sheo is the same Sheo that always was and always will be until the end of time. This same evidence points to the Grey March starting and ending the exact same way every Era. That is, a mortal hero takes on the mantle of Sheo for an unknown amount of time. Sheo becomes Jyggy. Jyggy turns back into Sheo. The hero with the mantle becomes a vestige like Haskill.