Board Thread:General Discussion/@comment-85.165.222.20-20130412232319/@comment-25105365-20140625200742

Konahrik could have been a powerful dragon priest that predicated that alduin would be defeated by the dragonborn (your character) and put his soul in his mask to help the dragonborn in the furture if he could defeat the 8 dragon priests of skyrim and that the prophecy was lost to time or destroyed  or that he was locked in the shrine as a punishment for betrayal and his story was lost to time   and that the reason for the masks powers                                                                             Almost any thing could have believe what you want