This chapter is about the role of the flow experience in the construction and complexification of the self, and, in a broader sense, its role in biological and cultural evolution. Some of the theoretical assumptions underlying this relationship have already been developed elsewhere (e.g., Massimini & Calegari 1979; Massimini 1982; Csikszentmihalyi & Massimini 1985; Csikszentmihalyi 1987b). The...