The term ‘stage’ occupies a structural and developmental role throughout the depth-psychology corpus, functioning simultaneously as a descriptive unit of psychic process, a normative marker of progress, and a philosophical problem. Jung himself organized analytic work into four successive stages—confession, elucidation, education, and transformation—each linked to a different therapeutic lineage and culminating in individuation. Parallel to this clinical schema, Jung mapped four stages of the Eros cult (Eve, Helen, Mary, Sophia), offering a developmental typology of the anima. Post-Jungian writers such as Edinger ground the concept in alchemical operations, where stages of the opus—nigredo, albedo, rubedo—correspond to stages of psychic transformation. Neumann employs stage-thinking to chart the evolution of consciousness from matriarchal to patriarchal to individuated modes. In the addiction and recovery literature, stage-models proliferate: Schoen articulates five stages of addiction development; Morrison maps six dream-stages of recovery; Fowler and Peck supply faith-development stages that Mathieu applies to spiritual bypass. The concept is not without tension: Dogen’s Zen critique, mediated through Cooper, challenges any linear staging of enlightenment, insisting that practice and realization are non-sequential. This polarity—stage as necessary developmental scaffold versus stage as reductive linearization of organic psychic life—defines the central argumentative divide the corpus presents.