Rotation occupies a structurally significant position across several domains of the depth-psychology library, carrying meanings that range from cosmological and metaphysical to symbolic and alchemical. In Platonic cosmology, as transmitted through the Timaeus and its commentators, rotation designates the primary self-motion of rational souls — axial rotation characterizes the individual planetary intelligences, while the circular revolution of the World-Soul’s Same and Different constitutes the architecture of cosmic order. Rudhyar, working at the intersection of astrology and Jungian individuation theory, consciously inherits this cosmological grammar: the Earth’s axial rotation becomes the symbolic substrate of individual selfhood, the ‘motion in time’ that generates the circle of houses and the zodiacal degree. Its public discovery at the Renaissance is read as the exoteric announcement of the individuating impulse. For Jung and von Franz, rotation appears most decisively in the alchemical context — rotatio is a technical term of the opus, cognate with circulatio and circumambulation, expressing the recursive, self-completing movement through which psychic content is transformed. In the dream-series analyzed in Psychology and Religion, rotation is the kinetic form of the mandala, the movement by which the circle confirms its centre. The concordance thus tracks rotation from Platonic nous to alchemical opus to astrological symbolism, with a consistent underlying logic: rotation enacts interiority, self-reference, and the individuation of a centre.