Life is a series of stages, each unique in its own way. The purity of birth to the curiosity of childhood; the spiritual portal of Bar/Bat Mitzvah to the rebellions of adolescence; the struggles of adulthood to the challenges of a midlife crises; the maturity of experience to the white-haired wisdom of age; the pain of passing to the tears of mourning. What do these stages mean? How can I optimize them to live a more meaningful life? Why the fluctuations, from intense joy to intense pain?