But, Sheogorath has tried to sway the decision in his favor. The time has almost passed, and she remains steadfast. If she can live there for 100 years, continuing her life of prayer, my theory will be proven.
To test this, I sent one of my priestesses to live alone on an island north of Dagon Fel. He contends that solitude causes madness, while I maintain it allows for solace and meditation. You have come here for a reason, though you may not know what it is. (The hero managed to summon Azura in her shrine.)