The book "Mechthild of Magdeburg, Mechthild of Hackeborn, Gertrude the Great" by Barbara Brüning illuminates the lives and philosophical views of the mystics from the Helfta monastery. Through careful research, the specific contributions of each thinker to philosophy and mysticism are elaborated. Mechthild of Magdeburg is examined in relation to the various forms of love, while Mechthild of Hackeborn addresses the virtues of praise and gratitude. In contrast, Gertrude the Great is analyzed in the context of dealing with illness and death. This work is part of the "Lived Philosophy" series by Militzke Verlag and offers an in-depth exploration of the philosophical and mystical traditions of the Middle Ages.