Board Thread:Lore Discussion/@comment-193.34.160.16-20150717153103/@comment-26356342-20150723175734

One of my all-time favorite books within the Elder scrolls world is The Doors of Oblivion in it, is described the many different ways people have found to enter realms of oblivion. As AzuraKnight mentioned it's not totally closed off, it could be that once you go insane that somehow "unlocks" the door for you to stumble into the Shivering Isles. In Elder Scrolls: Oblivion, we do encounter a group of adventurers who are realitively sane, and are given the option to kill them or make them insane, so it can't be THAT hard to find your way to the shivering Isles.