Where do insights come from? What causes those moments when, unexpectedly, a marvelous new idea flashes into consciousness, possibly accompanied by feelings of surprise and delight? Sudden insights are rare, yet everyone appears to be familiar with the experience that may be alternatively described as an “Aha!” or “Eureka” moment: a sudden realization, an epiphany, illumination, revelation, or satori. The ideas resulting from insight experiences range from mundane to historic. Insight is defined not so much by the importance or significance of the content produced, but rather by the cognition and the phenomenology of the event. At its core, the insightful solution process begins with the solver holding an incorrect representation, and ends (if successful) with a nonobvious solution. But there is much more to know: What is insight, and how does a solution emerge unexpectedly into awareness? Is there a set of steps, a pathway that leads to insight?