Within the depth-psychology corpus, ‘nail’ operates across several distinct registers that converge on questions of fixation, fate, and incarnation. The most sustained treatment appears in Onians, who documents the nail’s archaic role as an instrument of binding and destiny: Roman ritual required the annual driving of a nail into the Capitol to ‘fix’ fate, and Latin authors understood love itself as a nail driven into the animus. This fatalistic-magical register connects the nail to defixio—binding spells, devotio, and the irreversible inscription of outcomes onto persons or places. Von Franz, in her commentary on the Puer Aeternus, reads the nail through the lens of crucifixion symbolism: a dream-image of an enormous nail piercing a naked figure signals the dangerous inflation of an individual who has identified with sacred suffering, as well as the necessary mortification that separates ego from numinous content. Bleuler’s clinical material offers a chilling parallel, documenting how a schizophrenic patient named Nageli reasoned himself into messianic identity through a word-sound association with nails and the Cross. Snell’s linguistic analysis adds a further dimension, noting that ‘the head of a nail’ constitutes a genuine nominal metaphor in Greek, one organized around resemblance rather than function. Together these perspectives reveal the nail as a symbol at the intersection of fate, fixation, the suffering body, and the concretizing power of language.