But he also wrote lesser known essays, among which were PSYCHOANALYSIS AND TELEPATHY (1921); DREAMS AND TELEPATHY (1922); and THE OCCULT SIGNIFICANCE OF DREAMS (1925). In his NEW INTRODUCTORY LECTURES ON PSYCHOANALYSIS he dealt directly with telepathic phenomena. He thought that telepathy might have been humankind's archaic way of communicating. (If so, in my opinion we should never have lost it.) My colleagues at the UN and other circles of friends breathed a sigh of relief -- for at least I had gone conventional again. Except that Freud's "psychic" topics had been relegated to the Fringes. Anyhow, for a while I was a Freudian, quite enthusiastic at that. Next, of course, came the works of the famous Swiss psychoanalyst, Carl Gustav Jung (1875-1971), and whose voluminous outputs not only had to do with mind but with art and aesthetics and, ultimately, the occult. I invested in FIFTEEN of his THICK volumes which then sold for about $8.50 each (The Bollingen Series, Pantheon Books.) This was at least a good monetary investment, because today most of them go second hand for about $200. Jung became most famous for his concepts of the collective unconscious. Simplified, this concept holds that the collective unconscious pertains not to one individual only, but to a whole nation and to the whole of mankind.