Due to its anthropological-philosophical concept that deals with the human "will to meaning," Viktor E. Frankl's logotherapy is much more than a psychotherapy method. It is a comprehensive offering for people in all walks of life to occasionally reconsider their lifestyle and align it as much as possible with what is meaningful, reasonable, and ethically justifiable. In the present book, the "individual cells" of lifestyle, the so-called "habits," are explored. Their significance for maintaining or regaining mental and physical health should not be underestimated. Especially in psychosomatic illness processes, meaningless habits often play a fatal role as triggers for recurring episodes of illness. If they can be replaced with more meaningful habits, the quality of life significantly increases, and well-being is achieved.