ethereal body; astral body
Esoteric term for a subtle, non-physical body believed to exist alongside the physical body. Used in spiritual, occult, and some philosophical contexts.
Some people claim to have experienced astral projection.
彼は瞑想中に幽体が肉体から抜け出る感覚を覚えた。
During meditation, he felt his ethereal body separate from his physical body.
out-of-body experience
Compound of 幽 (yū, 'dim, subtle, hidden') and 体 (tai, 'body'). The exact historical derivation is uncertain; the term appears in modern esoteric and spiritual literature.