The truth is that there is a very large part of the mind, actively functioning, that is completely unknown to the conscious self. The early memories that have been lost to consciousness make up the state described by Freud as "repression". By this term he means psychological material that is caught and held in a fixed form and place in the mind, and that by reason of its loss of fluidity remains unavailable to consciousness. By removing "repression", the mind is relieved from an obstacle of a fixated nature and is restored to its normal state of flux and plasticity. The chief forces in the unconscious seem to be not from the higher soul levels but from the patterns engraved upon the mind in early childhood, when it is plastic and unable to discriminate or refuse.