If we could eliminate the conscious, Jung believed there would be little or no difference between one human being and another in the original unconscious psychical content. He saw in the formulation of the experience of the unconscious, in its interior, the archetypes, his assumption that the fundamental structure of the psyche is uniform.
Traditional peoples, when speaking metaphorically, talks about this as the very first time, before consciousness, and of a not yet embodied conscious mind. As if all there was then, was a vast cosmic amniotic fluid that our preconscious spirits or archetypes emerged from and transformed into a world behind the world. Before this there was no self awareness of any kind. There were no conscious mind around to experience that, except from our psychic ancestors, thought of today as archetypes. But traditionally they were thought of as spiritual patterns of behavior which biology today refers to as something that recurrently underlies all life. Humans forms and animals lived there, but there was no difference between them. A person could become an animal, or a plant, and an animal could become a human being. They all appeared the same and spoke the same tungue. Thats why children and animal infants are believed to have this ability. There were bears, plants, reindeers, trees and birds, but as soon as they turned into each other they were all the same since there was no projection of this unconscious material reflected back from any consciousness in the physical world. It was thought that the first to leave it were the shamans, and that people later learned from them how to reenter this pre-conscious world, and its undifferentiated field of forms were all natural elements each could transform into the other as they changed presence in this bodiless psychic substance. As a potency of the same source. This primordial time was the underlying events of the perceivable world. It was experienced as an endless flow of consciousness of which we are mostly unconscious. Something we still are today. This metaphorical language of traditional peoples was common knowledge to them. Something we are beginning to learn about ourselves again in psychological anthropology. We are beginning to understand the direct experience the creative language needs to be able to describe the transformation of our timeless autonomous flow of consciousness into culture.