The concept of the Immortal Body occupies a remarkable crossroads in the depth-psychology corpus, where alchemical, Daoist, Greek philosophical, and Indian spiritual traditions converge on a single yet irreducibly complex question: whether the physical organism can be transformed into, or serve as the vehicle for, an enduring, incorruptible form of existence. Von Franz locates the term’s psychological heart in the alchemical imagination, where the philosopher’s stone doubles as the resurrection body — not a posthumous theological gift but a subtle body slowly crystallised within the mortal frame through meditative practice. This ‘glorious’ or ‘immortal’ body stands in productive tension with Christian eschatology’s ‘glorified body,’ and both differ sharply from the Daoist programme, in which qi-cultivation, neidan, and corpse-deliverance practices aim at a literal somatic transcendence: the body that ascends to heaven in broad daylight. Jung’s reference to the ‘diamond body’ as the psychic centre of personality — identified with the immortal part of the hero — bridges East and West, while Plotinus offers the Neoplatonic counter-argument that soul is the self-subsisting life-principle requiring no bodily substrate at all. Sri Aurobindo extends the question onto an evolutionary axis, entertaining physical immortality only if the material body can be made sufficiently plastic to match the progress of the inner Spirit. Across these traditions, the Immortal Body functions as a symbol for individuation’s telos: the consolidation of an imperishable psychic identity within, and ultimately beyond, temporal existence.