‘One should try to see health and disease in light of the theory of colour.’ – Rudolf Steiner This book is the result the of the author’s adventure in painting and work with Liane Collot d'Herbois (1907-1999), the well-known artist and therapist who worked in the tradition of Rudolf Steiner’s spiritual research. It follows Marie-Laure’s journey of self-discovery after meeting Liane for the first time, and goes on to describe Collot D'Herbois’ teaching and the effects of particular colours and materials to explore light and dark.