Experiments in Happiness.

"Mihaly Csikzentmihalyi made people carry a pager, and told them that every time it went off they should write down what they were doing and how much they were enjoying it. The idea was to avoid the memory’s tendency to focus on peaks and troughs, and to capture the texture of people’s lives as they were experiencing them, rather than in retrospect. The study showed that people were most content when they were experiencing what Csikzentmihalyi called “flow”—in Haidt’s definition, “the state of total immersion in a task that is challenging yet closely matched to one’s abilities.” We are at our happiest when we are absorbed in what we are doing; the most useful way of regarding happiness is, to borrow a phrase of Clive James’s, as “a by-product of absorption.”" - from imomus.