Astral plane
Fictional concept of a plane of existence, similarly postulated by various philosophies and religions; crossed by the human soul in its astral body on the way to being born and after death, believed to be populated by various immaterial beings
The astral plane, also called the astral realm or the astral world, is a plane of existence postulated by classical, medieval, oriental, esoteric, and New Age philosophies and mystery religions. It is the world of the celestial spheres, crossed by the soul in its astral body on the way to being born and after death, and is generally believed to be populated by angels, spirits or other immaterial b... Wikipedia