For a long time I have held this COEX idea as central to the psychotherapy I do. I think of them as patterns of the psyche. It is the pattern that unites development with myth. Many myths are stages of development & many stages of development are best expressed as myth. what Groff describes here must go by many names, Complexes? Archetypal structures?
“COEX: Systems of Condensed Experience: – A COEX system is a specific memory constellation comprising in a condensed form experiences (and/or fantasies) from different life periods of the individual. Memories belonging to a particular COEX system have a similar basic theme or contain similar elements and are accompanied by a strong emotional charge of the same quality.