The sacred-profane dyad constitutes one of the foundational organizing polarities of the depth-psychology and comparative religion corpus, receiving its most systematic treatment in Mircea Eliade’s phenomenological work, where it is elevated from a descriptive contrast to an ontological claim about two irreducibly different modes of being in the world. For Eliade, the sacred is not merely a category of feeling or social convention but a modality of existence structured by hierophany, cosmogonic repetition, and ritual reactualization; the profane, by contrast, is a homogeneous, neutral, and historically recent condition — the product of deliberate desacralization. Rudolf Otto’s prior analysis of the numinous supplies the experiential substrate from which Eliade’s structural phenomenology proceeds. Within the Jungian stream, the sacred-profane tension is reinterpreted psychologically: the sacred becomes coextensive with the autonomy of the archetype and the numinous affect of the Self, while profane existence is implicitly identified with ego-bound, desymbolized consciousness. Ann Ulanov and Marion Woodman extend this into clinical and feminist registers, treating the loss of sacred grounding as a condition for addiction, compulsion, and soul-loss. Joseph Campbell reads the tension mythologically across cultures, while Émile Benveniste excavates the linguistic prehistory of ‘holy’ and ‘sacred’ across Indo-European roots, revealing how the sacred was originally encoded in the very grammar of social life. The central unresolved tension across these positions concerns whether desacralization is irreversible or whether the archaic capacity for sacred experience persists, disguised, within secular modernity.