Pardon. Could you clarify the correct way to use the term for me?
Would it be, for example, 'Talos used the process of mantling to assume Lorkhan's place' rather than 'Talos mantled Lorkhan'?
I'm saying all this talk of the mythical is blinding everyone to the political reality.
Ysmir, Hjalti, Arctus, and the Underking make a political allegiance in order to establish imperial rule over Tamriel. Tiber Septim is a creation of propaganda.
The story fed to the average denizen of the Empire is that Tiber Septim came from Atmora, and using a combination of diplomacy and military might forged the 3rd empire. But if the Arcturian Heresy is correct, the story people believe is a complete and utter lie.
For comparison: imagine learning George Washington never existed, but really John Adams and Thomas Jefferson shared a wig.