Sanctification occupies a complex and contested position across the depth-psychology corpus, appearing simultaneously as a theological category, a phenomenological structure of archaic religious experience, and a psychodynamic process of interior transformation. In the Philokalic tradition, sanctification designates the complete mortification of sensory desire and the progressive purification of the soul through repentance, dispassion, and the indwelling of the Holy Spirit — a movement inseparable from theosis and the gradual conformity of the human person to divine nature. Eliade situates sanctification differently, reading it as the archaic structure by which the whole of human life is raised onto a transhuman plane through participation in cosmic symbolism, an ontological doubling rather than an ethical achievement. Jung and his successors approach the term obliquely, finding its functional equivalent in alchemical processes of nigredo, putrefaction, and whitening — the materia that ‘purifies and sanctifies itself’ in the opus. Woodman imports this Jungian register into the psychology of the body, reading the dogma of the Assumption as a sanctification of matter itself. William James records the mystical phenomenology of sanctification as reported by the saints. What unites these otherwise divergent treatments is the insistence that sanctification names a genuine ontological change, not mere moral improvement — a transformation of substance, whether psychic, somatic, or spiritual.