The Spirit World (Reikai) is a different reality, generally unconnected to the real world, that coexists with it and vaguely mirrors it. It has been explained by awakened as a different state of the Universe.
Many refer to it as the Dreamworld, since even Sleepers have been known to enter or perceive it during drug induced dreams (certain mycotoxins have been proven sufficient, but is something only known among the Awakened). Such event when sleepers perceive the Spirit World in any way are due to the interference of the Supernal upon the Real World.
For matters concerning the spirit world the Japanese language has traditionaly been used as the standard termonology language among the awakened.
The Spirit World has native inhabitants whose existence is incompatible to the real world. These inhabitants are separated in three categories:
- The Yokai – those beings are the native beings of the Spirit World. They can be contacted through the Spirit Arcana. They can cross into the Real World only if they have some way of manipulating the Supernal in the smae way that the Awakened of the Real World do.
- The Yurei – those being are the ghosts of Real World beings that have died and have had some kind of contact with the Supernal that has allowed part of their existence to survive in the Spirit World. The Yurei can be contacted through the Death Arcana. Those ghosts usually retain an ability to manipulate the Supernal and can thus interact with the Real World creating hauntings and other such effects.
- The Kami – those spirits, known among the Awakened as the Gods of Earth or Inner Gods are spirits that retain a good knowledge of the happenings in the Real World, though they are considered unable to affect it in any supernatural way. They are known to be able to travel between the worlds freely though, probably without making use of the Supernal. It is believed that the Kami were beings were inhabitants of the Real World that have managed to cross into the Spirit World permanently. They can be contacted through the Fate Arcana.