Abstract - C.G. Jung left a great deal of ambiguity surrounding the ontological status of the archetypes and the collective unconscious. He did so because of the inadequacy of the science of his day. Modern developments in the neurosciences and quantum physics -- especially the new physics of the vacuum -- allow us to develop Jung's understanding of the archetypes further. This paper analyzes the salient characteristics of Jung's concept of the archetype and uses modern biogenetic structural theory to integrate archetypal psychology and the neurosciences. The paper reviews some of the evidence in favor of direct neurophysiological-quantum coupling and suggests how neural processing and quantum events may interpenetrate.