The difference between the "natural" individuation process, which runs its course unconsciously, and the one which is consciously realized, is tremendous. In the first case consciousness nowhere intervenes; the end remains as dark as the beginning. In the second case so much darkness comes to light that the personality is permeated with light, and consciousness necessarily gains in scope and insight. The encounter between conscious and unconscious has to ensure that the light which shines in the darkness is not only comprehended by the darkness, but comprehends it. The filius solis et lunae (the son of the Sun and Moon) is the possible result as well as the symbol of this union of opposites. It is the alpha and omega of the process, the mediator and intermedius. "It has a thousand names," say the alchemists, meaning that the source from which the individuation process rises and the goal toward which it aims is nameless, ineffable.