Within the depth-psychology corpus, ‘Rock’ operates across several registers that consistently converge on themes of primordial foundation, imperishable selfhood, and the prima materia of transformation. In alchemical literature, as surveyed by Abraham and amplified by Jung, the rock figures simultaneously as the location where the prima materia is found, as the alchemical vessel, and as a name for the philosopher’s stone itself—a tripartite identification that renders it one of alchemy’s most semantically dense symbols. Von Franz, extending Jung’s alchemical readings, articulates the rock’s paradox with particular precision: it is the solid ground that emerges after the descent to hell’s floor, yet from it flows the water of life, making it at once maximally stable and maximally generative. Jung, in both Aion and Psychology and Alchemy, traces this motif into Christian theology, where the rock is the cornerstone, the typological identification of Christ with the lapis philosophorum. In cosmogonic mythology, von Franz’s Samoan material presents the rock as the primordial given from which all creation proceeds. Aboriginal testimony recovered by Abram collapses the distinction between person and rock altogether: ‘This rock’s me.’ Sanford and the Man and His Symbols material extend the symbol into the dreaming psyche, where stone and rock signal the Self’s eternal, lapidary character. The symbol’s range thus spans cosmogony, Christology, alchemy, and individuation.