Stylistic mixture — the deliberate interweaving of high and low registers, the tragic and the comic, the sublime and the grotesque within a single literary work — is treated in the depth-psychology corpus principally through the monumental philological scholarship of Erich Auerbach, whose Mimesis constitutes the authoritative locus for this concept. Auerbach traces the principle from its biblical origins through Dante’s vernacular sublime, Shakespeare’s polyphonic drama, Rabelais’s carnivalesque encyclopedism, the Spanish siglo de oro, and the French realist novel, arguing that the capacity to represent serious, even tragic, dimensions of everyday life depends upon the willingness to violate ancient stylistic decorum — the separation of registers by social rank and genre. Against the classical doctrine of the genera dicendi, which assigned elevated style to elevated subjects, Auerbach demonstrates that the story of Christ first broke this rule irreversibly, embedding divine tragedy in the humblest social registers. Victor Hugo’s Romantic reformulation of the principle is judged artistically false, because his collision of sublime and grotesque extremes bypasses the truthful representation of lived reality. Auerbach explicitly traces the genealogy of his own analytical category, noting it emerged from his Dante studies before being extended to French realism. The term thus functions in this corpus less as a psychoanalytic concept than as a hermeneutic key to the history of Western literary representation and its underlying anthropological commitments.