Prime Material Plane
In the Great Wheel cosmology , the Prime Material plane consisted of an infinite expanse filled with a fluid known as phlogiston , within which floated immense crystal spheres , each enclosing an entire system of one or more worlds. Specific conditions varied greatly from one crystal sphere to another, but they were all considered to be part of the same plane.
In the Great Wheel cosmology , the Prime Material plane consisted of an infinite expanse filled with a fluid known as phlogiston , within which floated immense crystal spheres , each enclosing an entire system of one or more worlds. Specific conditions varied greatly from one crystal sphere to another, but they were all considered to be part of the same plane.