Almost 20 years ago, a Hungarian psychology professor, Mihaly Csikszentmihalyi, published his ground-breaking work, ‘Flow: The Psychology of Optimal Experience.’  I’ve been a fan of Csikszentmihalyi, (“chick-send-me-high-ee”) ever since that time. According to “flow” theory:   people are most happy when they are in a state of flow— a state of concentration or complete absorption with the activity … More The Science of Happiness: Getting in the Flow of Your Life