The article deals with the nature of the archetype using the most recent validations coming from the physics of chaos and neuroscience. The correspondences highlighted between the strange attractor of physics and the archetype make it sus-tain the substantial coincidence identifying it in the procedural nature and not so much structural of the Archetypal System (AS). The identification of the archetype as a function supports the hypothesis that the AS is arranged in networks where the individual nodes are the archetypes connected by a type of functional connectivity. The chaotic and non-linear conception of the archetype has important implications in the mother-child relationship and in the analytic relationship above all because it conceptualizes the discontinuity and renegotiation of choices as essential elements of change and development.
Keywords: Archetype, chaos, non linear dynamic systems, biforcation, strange attractor, process and function