Within the depth-psychology corpus, the shamanic spirit guide occupies a liminal conceptual position: it is simultaneously an ethnographic datum, a depth-psychological archetype, and, in its contemporary alias as ‘trip-guide,’ a clinical-therapeutic function. Eliade’s foundational scholarship establishes the spirit guide as an ontological necessity within shamanic cosmology — the helping spirit or ‘ayami’ who initiates, instructs, and accompanies the shaman through ecstatic journeys to otherworldly realms. These entities are not incidental but constitutive: without them, the shaman cannot locate lost souls, navigate the underworld, or effect healing. Von Franz, reading Eliade through a Jungian lens, identifies the shaman’s spirit-world as homologous with the unconscious, recasting the spirit guide as a personified autonomous complex or inner figure encountered in altered states. McNiff extends this archetypal reading into expressive-arts therapy, arguing that the shaman’s intermediary function — traveling between worlds to restore soul — models what happens imaginally in creative therapeutic work. A contemporary tension emerges with Mahr’s Jungian analysis of psychedelic therapy, where the modern ‘trip guide’ inherits the shamanic function of holding the ritual container during ego-dissolution. The corpus thus traces a genealogy from ancestral spirit-helper through Jungian archetype to contemporary therapeutic accompanist, with the central tension being whether the guide is an objective spiritual entity, a projection of the collective unconscious, or a relational clinical function.