The universe we know, all of history and all the futures we will experience if we live long enough... those are the mortal realms of Suzerain. In the Suzerain universe there is another half of reality, however. The Maelstrom. And in that far flung corner of the spirit world you'll find all the immortal realms of gods and other beings of divine power.
The Greek gods have created Mount Olympus here. There is a Realm Of The Archangels. The Great Spirits have created realms of the elements, of emotions and animals, and other things besides. There is a Fey Realm Of Dreams. And many more.