philosophical ways subjects practitioner tips caroline theory healing points stewart explanations nash energy valuable look metaphor stress heal sound strategic inner journal tape drug effects stories process goals research cases phil carr hardcover illustrations child coach thorsons clinicians hodder case year successful brandon aspects magical david arts revised treat sports hypnotherapist sexual deal piatkus various davies related crown encourage psychology abilities revolutionary includes background martin ceci improve ideal discussion publishing understanding questions spirit self relationship people hardback peter matthew dream fiona working quot therapeutic interested patterns haley guides william leading