For questions about the Astral Plane or travel through the Astral Plane, either as a standalone plane or a layer next to the real world.
For questions about the Astral Plane in RPGs or travel through such a plane, either as a standalone plane or as a layer next to the real world.
In RPGs, the Astral Plane often serves as a sort of transitive plane, allowing travel from one plane to another. Spells or abilities may allow characters to enter this plane and traverse it to reach the planes beyond.
In dungeons-and-dragons, the Astral Plane is the realm of thought and dream, where visitors travel as disembodied souls to reach other places and realms. It is described as an endless, mostly empty silvery sea punctuated by occasional floating pools of color.
In shadowrun, it is described as the magical shadow of the mundane world. Dead items cast a greyscale shadow while living beings cast their Aura into the Astral, allowing them to be read. Nothing is truly physical in the astral, but Auras, especially awakened ones, do hinder the movement of a traveling, astral-projecting being.