Within the depth-psychology library, ‘sperm’ is rarely encountered as a merely biological datum; it is almost invariably a charged symbolic term embedded in cosmological, alchemical, philosophical, and mythographic frameworks. The most sustained engagement appears in Hillman’s archetypal critique of the history of embryological theory, where sperm functions as the axis around which patriarchal fantasies of generative superiority are organized — the white, pneumatic, soul-bearing male seed set against the red, passive, deficient female matter. Aristotle’s formulation that ‘the female does not contribute semen to generation’ inaugurates a tradition Hillman traces through Aquinas, Galen, and Renaissance science, showing how empirical observation was systematically distorted by prior archetypal fantasy. Onians recovers the archaic Greek belief that sperm is cerebro-spinal substance, the very life-fluid of the head, connecting seed with soul, intellect, and immortality. Plato’s Timaeus treats the marrow-sperm continuum as the medium through which the demiurge binds soul to body. Grof’s transpersonal phenomenology adds a strikingly different register: the sperm race as directly accessible experiential content under non-ordinary states. Abraham’s alchemical lexicon reveals ‘mercurial sperm’ as the prima materia binding Sol and Luna. Together these positions map a conceptual field in which sperm is simultaneously biological fact, cosmological principle, soul-substance, and the vehicle of centuries of projected gender asymmetry.