The term ‘hypostases’ occupies a pivotal position across the depth-psychology corpus, appearing most densely in theological and patristic literature where it designates the three distinct personal expressions—Father, Son, and Holy Spirit—within a single divine essence (ousia). The Cappadocian Fathers, as Armstrong demonstrates, deployed the formula of one ousia with three hypostases to navigate between Sabellian conflation and Arian subordinationism, making the hypostases the epistemically accessible faces of an otherwise incomprehensible Godhead. Bulgakov extends and complicates this framework through his sophiology, arguing that Sophia functions as the content disclosed through the hypostatic self-revelation of each Trinitarian person, introducing a fourth, non-hypostatic principle that mediates between ousia and persons. Palamas and the Philokalia tradition add a further tension: participation in God is possible through the divine energies, not through essence or hypostases, which remain absolutely incommunicable. John of Damascus provides the rigorous scholastic scaffolding, distinguishing subsistence from essence and clarifying how numerical difference between hypostases is a matter of individual characteristics rather than nature. Jaynes employs the term in a strikingly different register, using ‘preconscious hypostases’ to denote Homeric psychological faculties such as thumos, phrenes, and noos—functional quasi-agents within the bicameral psyche. This terminological convergence across theological and psychological discourse marks hypostases as a concept at once ontological and phenomenological.