Joy. Joy emerges when one’s current circumstances present unexpected good fortune. People feel joy, for instance, when receiving good news or a pleasant surprise. Joy creates the urge to play and get involved, or what Frijda (1986)termed free activation, defined as an “aimless, unasked-for readiness to engage in whatever interaction presents itself” (p. 89). The durable resources created through play are the skills acquired through the experiential learning it prompts.