This collection of previously published papers can be viewed as a story of the gradual emergence of an overarching idea through the course of a life's work. The idea is one that describes an essential principle of process for living systems - that there is a continuing impetus, both energizing and motivational, that moves the system toward enhanced coherence in its engagement with its surround as it achieves increasing inclusiveness of complexity. The papers have been selected from a career of developmental research within the framework of psychoanalytic thinking. One might say they represent...