internalization is a subjective absorption by nonphysical means of both the real and imagined presence of another person over a long period of time. How this happens is a mystery.
Sedgwick defines internalized presence as a quasi-mystical process whereby both the real and phantasied other are absorbed into psychic structure, and argues that the internal version must be constellated via an external counterpart.
, An Introduction to Jungian Psychotherapy: The Therapeutic Relationship, 2001thesis