Seligman's concept of the engaged life is basically Csikszentmihalyi's concept of flow and optimal experience. Seligman thinks it a less important type of happiness than that gained from meaningful activities. And here Csikszentmihalyi agrees. He points out that flow is basically value-free. One could be in flow when committing a terrorist act, for example, or playing computer games which do not necessarily contribute much to the social good. Csikszentmihalyi argues that for a life to be meaningful, it must involve some sense of purpose.