The Astral Realm
Its an alternate dimension that is in an equivalent space to the real world. In this alternate dimension, all matter is composed of ectoplasm, and the life energies and consciousnesses of the beings there are discernible from the adepts who travel there.The adepts are beings or people who can travel to the Astral Plane using psionic or magical means, such as Dr. Strange. Powerful sorcerers and magicians like him, as well as powerful psychics, can project their astral bodies into the realm, allowing them to turn their bodies into weapons or grow in size.