The Swiss psychologist and psychiatrist Karl G. Jung died in Küsnacht (Switzerland). He was among Freud’s first collaborators and the first president of the International Psychoanalytical Association. He gradually distanced himself from Freud due to their differing interpretations of libido. While Freud considered it the sole source of psychic energy, the true instinctual aspect, and the only behavioral drive, Jung maintained that in reality there are various forms of psychic energy in man, all of which are decisive and important as instinctual drives, and that libido is one among them without having any principal importance. Jung reassessed the presence of a historical, ancestral heredity in the human personality, conceiving the archetypes. He was extensively interested in the psychology of religion and, unlike Freud, did not consider the image of God to be a product of psychic experience or a projection of paternal experience. On the contrary, Jung thought the relationship with an earthly father could assume religious significance precisely because a model preexists, a hereditary disposition, a universal structure of divine paternity. God is therefore like an imprint left on the psyche, but Jung refrains from asserting that such an impression is produced by something ontologically real.