This psychological mutation with its symptomatology and symbolism Jung has described as the individuation process, and he has amplified it with a wealth of material in his works on alchemy.
Neumann identifies psychological mutation as Jungian technical nomenclature for the individuation process, specifically the decisive personality reorganization of midlife in which centroversion becomes conscious and the self displaces the ego.
, The Origins and History of Consciousness (Princeton, 2019thesis