"Astral body" was, it is said, employed by the mediaeval Alchemists because of the ability it conferred upon the one who has it to traverse the "starry" regions. The "Astral body" is regarded as the "Philosopher's Stone" or "Living Stone" of the alchemist, the Golden "Wedding Garment" that Christ speaks of in the Gospel of Matthew[20] the "Soul Body" [soma psuchicon] that Paul mentions in the First Epistle to the Corinthians or the "Diamond Soul" spoken of in some of the ancient philosophies.