Carl Jung, a Swiss psychiatrist, had some unique views on the personal and the collective unconscious. The personal unconscious holds individual memories, even those that have been suppressed. The personal unconscious, as its name implies, focuses on an individual and his or her personal memories, instead of other peoples' memories. The collective unconscious, on the other hand, is unique because Jung said that this part served as a type of psychological inheritance, as it holds all the knowledge and experiences that everyone shares as a species. Carl proposed that this is a part of the unconscious mind, expressed in humanity and all life forms with nervous systems, which describes how the structure of the psyche organizes our experiences together. Jung believed that the main difference between the collective and personal unconscious was that the personal unconscious acts as a personal source of experience that is solely unique to the individual, while the collective unconscious collects and organizes these personal experiences in a similar way, only instead of being unique to the individual, they are unique to the members of a particular species as a whole.
According to Jung, an archetype was a model that represented people, behaviors, or personalities. He explained that these models apply to everyone and that someone could not necessarily alter them, as they were hereditary. Jung also believed that archetypes cannot be learned or taught, and that they simply function to organize our experiences with certain things or events. Their function in one's personality development may change from archetype to archetype, as they give a certain "label", in a sense, to individuals, which would, in itself, help to development one's own personality growth. Though there are some main archetypes that Jung believed in, he also believed that there are many, many more that could be used to label a person in a distinctive manner.