If knowledge is power, why doesn't knowing our needs and desires make us happy? Eckhard Roediger, a doctor and therapist, explores this question in his book, which is accompanied by practical exercises, and arrives at the surprisingly simple answer: Happiness is not something that comes to us and depends little on external circumstances. Happiness can and must be cultivated and practiced. Throughout our lives, we ask ourselves at various times and for different reasons whether we are satisfied with our lives. The answer often does not come out positively when we measure it against our wishes and reality. But how can we achieve and maintain a satisfying balance between the poles of the new and the familiar, between euphoria and boredom? Drawing from his experiences as a therapist, Eckhard Roediger describes not only the psychological and biological aspects.