The skull occupies a remarkably dense symbolic locus within the depth-psychology corpus, functioning simultaneously as vessel of transformation, seat of the life-soul, instrument of divination, and axis of sacrificial ritual. Across the literature, three principal axes of interpretation emerge. First, the archaeologically grounded tradition — most rigorously developed by Onians and corroborated by Campbell and Burkert — establishes that Paleolithic and Neanderthal cultures treated the skull as uniquely sacred, preserving it separately from the body, fashioning it into cups, surrounding it with red ochre, and deploying it in what can only be described as cultic contexts. This prehistoric substrate grounds the skull’s later symbolic career. Second, the alchemical-psychological tradition, represented above all by Edinger and Jung, reads the skull (caput mortuum, caput corvi) as the paradoxical residue of mortificatio: the worthless that becomes most precious, the dead vessel that encloses the seed of transformation. Third, the fairy-tale tradition — through von Franz and Estés — treats the skull as an instrument of intuition, discrimination, and ancestral knowing, particularly within feminine initiatory narratives. Across all three axes, the skull condenses opposites: death and rebirth, pollution and sanctity, brain and bone, containment and illumination. Its appearance consistently marks a threshold between the empirical person and a deeper, transpersonal ordering principle.