This chapter concentrates on some of the basic archetypal images that clearly belong to the collective unconscious and tend to have little in the way of personal meaning, such as the shadow, anima, animus and the persona have. The delusional material, or contents of the mind, seemed to Jung to be coming from a spot in the psyche that had never been conscious and not simply from material that had been repressed out of consciousness. In this way, Jung's concept of the collective unconscious places the psyche within the evolutionary process. In this sense the hypothesis of the collective unconscious links to Jung's dream of the skull in the prehistoric cave. In addition to the archetypal images in personified form, there also exist archetypal objects of which the major ones are such objects as a tree and snake. Finally, the chapter discusses mandala.