astral body
Esoteric term used in theosophy, occultism, and some New Age contexts to refer to a subtle body or energy double.
In theosophy, the astral body is said to connect the physical body and the spirit.
Compound of 星 (star, astral) + 気 (spirit, energy) + 体 (body), likely a calque from English 'astral body' used in theosophical and occult literature.