The meeting of two personalities is like the contact of two chemical substances: if there is any reaction, both are transformed.

Jung is one of the best known contemporary contributors to dream analysis and symbolization. " Two-thirds of the pages bear Jung's illuminations of the text. Although during the day he also saw her as predictable at night he felt some frightening influences from her room.

Jung considered individuation to be the central process of human development. The central concept of analytical psychology is individuation – the psychological process of integrating the opposites including the conscious with the unconscious while still maintaining their relative autonomy. Jung created some of the best known psychological concepts including the archetype the collective unconscious the complex and synchronicity.