The known world, the realm of mortals, is not the only part of existence.
The spirits live on an adjacent place, a place that some few are able to pierce through to with magikal power.
These world’s beside the realm of mortals are known as Yaninda.
Ancient legends speak of such places, such as the place the ancient Oon came from. Generally these are referred to as origins in ancient texts, though the birthplace of the Oon themselves is referred to as Origin, believed to be translated from their own language by the ancient Lizardfolk Empire.
Several realms in the Yaninda are known to exist, and are documented in ancient legends and modern texts of scholars and Arcanists:
The Deadrealms are the easiest to visit, as all mortals that die pass through the place to wherever it is souls go after death. Rituals of witches and Arcanists have long allowed brief travel to the place, if only as a shade of the mortal body. The Deadrealms is home to the Shores of the Dead, and the unceasing siege of the Fiend against the Black Lady’s forces.
The Spiritrealms, sometimes called the Greenrealms, are the home to various spirits of nature and the elements. Which travel to the Spiritrealms is impossible for mortals, if it possible through long ritual to at least blur the boundaries of the mortal world and see into and barely interact with the place. Such rituals are used by Witches seeking a soulbond with a spirit.
Whilst the Dreamrealms might seem like the easiest to reach for mortals, in reality it is the dreams that bleed over to the mortal world, and sleeping mortals are the best able to perceive these bleeds.
Some legends tell of spirits making their home in the Dreamrealms, but whether these stories are true or not is much disputed.
The Darkrealms are the only known Yaninda tied to an elemental power, that of elemental Dark.
Spirits of Darkness are most easily able to slip between here and the Spiritrealms, though their methods are entirely unknown.
Several theoretical Yaninda exists, based on knowledge of the above. Elemental aligned realms, fore fire and water and so forth, are believed to exist, though many spirits of these elements claim no knowledge of them.
The Lightrealms, believed to be a mirror to the Dark, have long thought to be lost somehow, as no spirit of Light has ever been encountered. That hasn’t stopped sages and mystics throughout history from hunting it.
Lastly, the Godsrealms are thought to be on the edges of the mortal world, perhaps bordering the other realms. It’s believed the Green Lady inhabits an area close to the Greenrealms, whilst the Watcher in the Night is said to be able to travel to the origin of Dreams.