Young's Concept of the Archetype

I love what you said about Young's concept of the archetype. That it's a two-way manifestation, that the archetype is neither physical nor mental. Would you talk a little bit about that? I mean, when you came up with the notion of an archetype, he had, this was not his idea. He talked about biological instincts and stuff like that, motivations. So that would be an archetype in an almost physicalist sense.