Representatives of positive psychology criticize traditional psychotherapy primarily for two reasons: it focuses on the past and aims to compensate for weaknesses and heal wounds. In contrast, positive psychology seeks to work in a future-oriented manner, that is, preventively. It aims to systematically develop competencies rather than correct weaknesses. In this book, you can familiarize yourself with the fundamental ideas of positive psychology and discover intervention options that align with its principles. The exercises, experiments, and rituals presented here help develop essential skills that allow us to respond to the following existential questions: How can I evaluate my past positively? How can I learn to forgive? How can I cultivate positive relationships? How can I become kinder and more cheerful?.