The Priestess — most often encountered in the depth-psychology corpus under her Tarot avatar as the High Priestess, and historically as the Greek hiereia or the Eleusinian female cult functionary — occupies a threshold position between conscious ego-life and the unconscious depths. Within Jungian-inflected Tarot literature (Nichols, Pollack, Hamaker-Zondag, Banzhaf, Jodorowsky), she functions as the primary symbol of feminine interiority: receptive, gestationally potent, epistemically non-discursive, and defined by what she withholds rather than what she discloses. She is the guardian of esoteric knowledge, aligned with the Moon, the Torah, and the egg of latent potential. A persistent tension runs through these readings: is the Priestess’s stillness a spiritual virtue — the receptive complement to the Magician’s active will — or a seductive trap that arrests development? Pollack sees danger in her passivity; Banzhaf treats her as the pivot where the hero’s journey shifts from doing to being. Jodorowsky elaborates her as a vessel of sacred virginity whose incubating knowledge requires solar activation to hatch into the world. In classical religion scholarship (Burkert), the priestess appears as a historically embedded institution — hereditary, civic, ritual — distinct from the archetypal feminine but informing its symbolic genealogy. Taken together, the corpus stages the Priestess as the meeting-point of unconscious wisdom, feminine archetype, and the initiatory threshold.