A magical change in a character's form, such as a prince becoming a beast or a girl transforming into a bird, central to many fairy tales.
Transformation is a core motif in fairy tales representing the dramatic shift from one state of being to another. Transformations may be punitive (a princess cursed to become a swan), redemptive (a beast returned to human form through love), or strategic (a hero changing shape to accomplish a task). The most famous transformation tales include Beauty and the Beast, The Frog Prince, and The Little Mermaid. In psychological interpretations (following Bruno Bettelheim), transformations symbolize the passage from childhood to adulthood, the anxiety of bodily changes during puberty, and the process of self-discovery. In cultural analysis, transformation tales often encode social messages about appearance, worth, and the nature of true identity.