What makes us happy? Philosophers, psychologists and scientists have long pondered that question.

Psychologists believe they may have a solution that satisfies everyone in flow theory, a model that better preserves the approach to individual distinctiveness by considering the mental experience as a process that might foster the evolution or the involution of an individual through his daily experiences.

The term, originally coined by Mihalyi Csikszentmihalyi, describes the experiences of intrinsically motivated people, those who are engaged in activities worth doing just for the sake of doing, rather than as a means to another end. “Enabling Positive Change. Flow and Complexity in Daily Experience” by Paolo Inghilleri, Giuseppe and Eleonora Riva sets out to reconnect the 'flow' of consciousness theory in human daily experiences highlighting its characteristics of flexibility and applicability in contract to other analytical models applicable to dynamic mental processes.

They believe that have a roadmap for application of positive psychological change theories and processes using a phenomenological perspective. They integrate flow theory with other traditional and contemporary approaches stemming from social, clinical and cognitive psychology, with the objective of providing a coherent conceptual framework as well as formalizing new models for intervention. They highlight the mutual influences between individuals and institutions in line with the eudaimonic view of happiness as the co-construction and harmonization of individual and collective well-being and stress the dynamic characteristic of flow process in the new application models – promoting a new positive psychological approach in line with the intrapsychic processes of individual change and growth.