as they try to force themselves into consciousness. When, however, the level of intensity is such that it is noticed by the Pcs. and its censor it is recognized as being derivative of the unconscious and is repressed anew. Thus repression is seen now as not a n once for all activity: rather it is a continuous process and a constant struggle at all levels of the mind. This notion brought another problem into focus. It came to Freud's attention that although the mechanisms of defense belonged to the conscious system, as ego preservative, they themselves operated unconsciously. This led to the conclusion that consciousness could not be a central concept, and possible that it is necessary to distinguish between two types of unconsciousness...
