Using the frameworks of psychoanalysis, group relations, systemic organisational observation, consulting and research, this book explores the relationship between the health of the work force and the health of organisations. It seeks to do this through an exploration of experience that has three dimensions linked in a single matrix: The bodily, the emotional and the social. This exploration is inspired by Bion’s original idea of the protomental matrix from which the group dynamics of basic assumption mentality are derived, leading to his initial ideas about group diseases and their cures.