change talk is a bit like walking up one side of a hill and down the other. The uphill side represents preparatory change talk (like DARN), and the downhill side is mobilizing change talk (like CATs).
Miller establishes the hill as a governing spatial metaphor for the full arc of therapeutic change-talk, mapping the phenomenology of ambivalence onto ascent and the momentum of commitment onto descent.
, Motivational Interviewing: Helping People Change, Third Edition, 2013thesis