Within the depth-psychology corpus, sacrilege occupies a complex semantic field that reaches well beyond juridical infraction of religious law. The term surfaces across three distinguishable registers. First, in Greco-Roman and comparative-religious studies (Dodds, Burkert, Benveniste, Adkins, Padel), sacrilege designates the transgression of a sacred boundary—the violation of the numinous order separating the consecrated from the profane—carrying contagious pollution and inviting divine retribution. Second, in Nietzsche and the philosophical tradition he inflects, sacrilege becomes paradoxically productive: to illuminate the holy by rational scrutiny is called sacrilege, yet the temptation to commit it is ‘just as strong’ as the reverence that forbids it, suggesting that transgression is constitutive of intellectual courage. Third, and most intimately psychological, sacrilege appears in Jung and his circle as an experiential threshold: the shattering ‘despair and sacrilege’ Jung associates with genuine encounter with divine grace, the Titanically inherited impulse toward sacrilege in Platonic psychology (Dodds), and von Franz’s German concept of Frevel—stepping beyond respectful limits before the numinous—all point toward sacrilege as the existential risk that accompanies genuine individuation. The corpus thereby holds in tension sacrilege as pollution, as epistemological courage, and as the shadow side of the sacred encounter itself.