David Henderson, PhD, is a psychotherapist and supervisor, a member of the Association of Independent Psychotherapists. He is a senior lecturer in psychoanalysis at the Centre for Psychoanalysis, Middlesex University and is the author of Apophatic Elements in the Theory and Practice of Psychoanalysis: Pseudo-Dionysius and C.G. Jung (Routledge)Journal articles include, ‘The Coincidence of Opposites: C.G. Jung’s Reception of Nicholas of Cusa,’ and ‘A life free from care: The hermit and the analyst.’ He is co-investigator on an AHRC-funded research project entitled: ‘One World’: Logical and ethical implications of holism.