Within the depth-psychology corpus, Ocean functions as one of the most generative cosmogonic symbols: not a geographical body of water but an originary plenum from which gods, rivers, and psychological structures alike emerge. The tradition divides broadly between two registers. The first, classically represented by Hesiod and elaborated by Keréyni, Onians, and Hillman, concerns Okeanos as a cosmic encircler — the serpentine, ever-moving source that winds around the earth, generates all rivers, and fathers the gods without himself being one of them. Hillman reads this figure as the archetypal ground of theorizing consciousness itself, the primal psyché that makes imagination possible. The second register, prominent in Jung, Greene, and Campbell, maps Ocean onto the unconscious: an undifferentiated totality from which consciousness emerges as a narrow bay receives the sea’s waves, and to which the ego perpetually risks regression. Greene’s uroboric ocean doubles as wisdom and as the threat of incestuous merger; Jung’s seminar passages image the disproportion of ocean to bay as the disproportion of unconscious to ego. Taken together, these positions establish Ocean as simultaneously cosmogonic ground, maternal matrix, epistemological horizon, and depth-psychological metaphor for the limitless unconscious substrate of mind.