For those searching for a good life (and who isn’t), psychologist and author Shigehiro Oishi says there’s more to it than happiness and meaning. In his book, “Life in Three Dimensions,” he explains how psychological richness brings joy. In a psychologically rich life, one prioritizes curiosity and exploration and embraces uncertainty and challenge. He tells Allison Aubrey, correspondent for NPR, many Americans attribute happiness to personal success such as a career, a house, and marriage. This is risky, he says, because it can be fleeting. Instead, living a life that includes inquisitiveness and perspective-altering experiences may be a roadmap to a full life.