This tendency to reduce all transpersonal contents to personalistic terms is the most extreme form of secondary personalization… when secondary personalization seeks to assert itself by devaluing the transpersonal forces, it produces a dangerous overvaluation of the ego.
Neumann defines secondary personalization in its fullest and most dangerous form: the systematic reduction of transpersonal psychic contents to personal categories, which produces ego inflation and forecloses encounter with the unconscious.
, The Origins and History of Consciousness (Princeton, 2019thesis