The relationship between Freud and Jung started in 1906 when the young Swiss psychiatrist, working at the Burghölzli, read and admired the dream theory of Sigmund Freud. In his article, "Psychoanalysis and Association Experiments," published in 1906, Jung gave generous praise to the theories of Sigmund Freud. He stated, "It appears, from some recent publications, that Freud's theory … is still consistently ignored. It therefore gives me great satisfaction to draw attention to Freud's theories—at the risk of also becoming a victim of persistent amnesia" (p. 66). Jung sent Freud a copy of his book on the word association test. In Freud's brief thank-you note to Jung, he made a prediction: "I am confident that you will often be in a position to back me up, but I shall gladly accept correction" (p. 67).

Thus began an intense and tumultuous relationship characterized