Sophia Aeterna — Eternal Wisdom — arrives in the depth-psychological corpus not as a fixed doctrine but as a contested field where Orthodox theology, Islamic mysticism, and alchemical symbolism converge upon a single animating question: what is the ontological status of a feminine divine principle that precedes, grounds, and perpetually illumines creaturely existence? Bulgakov’s sophiology supplies the most systematic Christian treatment, situating Sophia as the divine Ousia itself — the self-revelation of the Holy Trinity, shared by all three Persons yet irreducible to any hypostasis. His claim that the world’s being is ‘ontologically identical with its prototype’ in divine Wisdom generates the sharpest theological controversy in the corpus. Corbin’s contribution is equally consequential: reading Ibn ‘Arabi’s feminine figures as instantiations of the ‘mystic Sophia,’ he discloses a sophianic religion of love in which the eternal feminine functions as theophanic image and initiatory presence — a Sophia encountered not in systematic theology but in the visionary night of the soul. Von Franz, working through the Aurora Consurgens, recovers a third register: alchemical Sapientia Dei as the anima mundi caught in matter, awaiting redemption. Edinger synthesizes these streams by mapping Sophia’s passage from Solomonic wisdom through Gnostic speculation to her final emergence in the alchemical opus. The tension among these positions — theological, imaginal, and psychological — constitutes the living nerve of this entry.