Development of concepts--Removal of repression does not empty the unconscious--Repression is a special phenomenon--The unconscious contains not only repressed material, but subliminal sense-impressions which have never reached consciousness--It is constantly busied with new phantasy formation--Patients are urged to retain their hold on repressed materials that analysis has brought into consciousness--Prolonged analysis reveals contents other than those of a personal nature--Necessity to differentiate a layer called the "personal" unconscious whose materials originate in the personal past--Their omission from consciousness constitutes a defect or neglect--The moral reaction against this neglect shows they could become conscious if sufficient trouble were taken--The gradual transference of the personal unconscious contents into consciousness extends the periphery of consciousness. II. THE CONSEQUENCES OF ASSIMILATION OF THE UNCONSCIOUS 449 First result is increased self-consciousness--May lead to a sense of God-Almightiness in one type, or to overwhelming self-depreciation in the other--A result of ascribing to oneself qualities or vices that do not belong individually but collectively--The collective pysche divided into collective mind and collective soul--The collective contains the "parties inférieures" of Janet; the conscious and personal unconscious contains the "parties supérieures"--Incorporation of the impersonal unconscious leads to a dissolution of the pairs of opposites--As seen in neurotic, who combines megalomania and sense of inferiority in extreme degree--Primitive man possesses the collective vices and virtues in an undifferentiated way--Mental conflict only begins with conscious personal development--Desire to be good brings about repression of the bad--Collective view-point, though necessary, is dangerous to individuality--Collective psyche is the result of psychological differentiation of the gregarious instincts--Dangers of identification with collective psyche--Recognition of the different psychology of the types a safeguard, promoting a proper respect for individuality of the opposite type--Individuation hampered by man's suggestibility and tendency to imitation. III. THE INDIVIDUAL AS AN EXCERPT OF THE COLLECTIVE PSYCHE 456