Assays C. G. Jung on the psychogenesis of mental illness belong mostly to the early publications of the author. They appeared as first highlight in his work is still predominantly psychiatric. Its importance for the understanding of the research work of C. G. Jung can not yet be assessed in perspective. Although some aspects currently have a mainly historical interest, together they have not in any way lost its importance in the field of psychiatry. Half a century later, investigations and subsequent proposals still awaiting their author's development and experience.