Astral Plane
The astral plane is, in theosophical and esoteric tradition, the subtle dimension next to the physical, accessed in dreams, meditation, astral projection. Where the astral body moves. Concept developed in the 19th-century theosophy (Blavatsky) and 20th-century occultism.
Esoteric topography
Lower astral (close to physical, where confused entities dwell), middle astral (lucid dreams, encounters), upper astral (sublime experiences, higher beings). Map without scientific validation.