1. What is the concept of 'Flow' as defined in positive psychology?
A state of deep absorption and engagement where an individual is fully involved in an activity, experiencing intrinsic reward.
Explication
Flow, as defined by Mihaly Csikszentmihalyi, is a psychological state of deep absorption where a person is fully engaged in an activity, experiencing a sense of effortless involvement and intrinsic reward, often leading to optimal performance.