Okhema

Okhêma (ὄχημα) refers to the "carrier" or "vehicle" of the soul (okhêma tês psukhês), serving as the intermediary between the body and the soul, in Neoplatonism and the philosophical traditions it influenced.

Background
Neoplatonism is a branch of classical philosophy that uses the works of Plato as a guide to understanding religion and the world. In the Myth of Er, particularly, Plato rendered an account of the afterlife which involved a journey through seven planetary spheres and then eventual reincarnation. He taught that man was composed of mortal body, immortal reason, and an intermediate "spirit". Neoplatonists agreed as to the immortality of the rational soul but disagreed as to whether man's "irrational soul" was immortal and celestial or whether it remained on earth and dissolved after death.

Proclus
Building on concepts described by Iamblichus and Plotinus, the late Neoplatonist Proclus posited two "carriers" of the soul:
 * 1) the augoeides okhêma, or the "luminous vehicle" of the rational soul, which he identified as the immortal vehicle of the soul.
 * 2) the pneumatikon okhêma, or the "pneumatic vehicle" of the irrational soul aligned with the vital breath (pneuma), which he considered mortal.

Influence
The Neoplatonic okhêma was influential to Renaissance occult thought regarding the body of light and 19-century thought regarding the astral body.