There are psychic dimensions to the world as well as physical dimensions. The astral (or ethereal) planes are the result of a psychic or astral shifting of dimensions. Their are four major ‘types’ of planes. See the section on Mental Combat for the effects that travelers can have on various planes.
Universal Planes
Each universe (or at least each universe that is, or has at one time been, inhabited) is permeated by an astral plane. This is the simplest plane for wizards to reach. The physical world is fully visible from the universe’s universal plane.
Dream Planes
Dream planes exist when people dream. Some wizards maintain that there are an infinite number of dream planes. Others claim that there is only one dream plane that reacts differently to different dreamers’ psyches. Certainly, dream planes do react easily to travelers’ thoughts and emotions. Most likely, there are more than one dream planes, each with many separate areas.
The dream planes are inhabited by many ghosts of previous dreams, constructs created by previous dreamers that have managed to hang on to their ethereal existence.
Medium Planes
There are many medium planes, as well: the plane of dimensions, the plane of universes, the plane of time-lines, the plane of time, the plane of multi-verses. These planes connect every physical location that has life with every other physical location that has life. A wizard can travel (astrally) from universe to universe by using the plane of universes. By using the plane of time, the wizard can astrally travel to different times.
There is one plane of universes for each multiverse, one plane of time for each time-line, one plane of time-lines, one plane of dimensions, for each time-line, and one plane of multiverses for each time-line.
The medium planes are inhabited by many strange and fierce creatures, making travel a dangerous thing at best.
Major Planes
The major planes, or ethical planes, are manifestations of the ethos of living things. The three dominant major planes are the planes of light (goodness), the plane of darkness (evil), and the plane of eternity. Of course, there can be good in darkness and evil in light.
The major planes are inhabited by creatures who work for their ethical stance. These planes have many levels.
