Stepping into the same river every week.

Abstract: The desired outcome of group psychotherapy, indeed, of any psychotherapy, is therapeutic change. But is fundamental change possible, or is there only a rearrangement of a preexisting state? This paper explores the question of the existence and nature of therapeutic change from the perspectives of the Greek philosophers Parmenides and Heraclitus using concepts from chaos theory to examine the process. I conclude that the actuality is a melding of the two ideas; that change occurs within continuity, and that continuity requires change.

The author uses many terms and phrases that are new to me and fun to work out - however some of his conclusions are remarkably similar to the ones used around here: creativity, new responses.

Here is the article