In this handbook, the acknowledged Hildegard expert Peter Pukownik, therapist and leader of numerous fasting courses and cures, gives a variety of suggestions and recommendations for therapeutic fasting based on Hildegard's medicine and his decades of experience (see many concrete healing successes, programs and recipes). In combination with meditation in silence, in the group and various movement and breathing techniques, the fasting person recalls himself, experiences and learns to understand his body signals, "to listen to the voice of his soul". Through this fasting he discards physical and mental ballast, cleanses body and psyche and creates conditions for healing and a healthy lifestyle, strengthens his vitality, attains inner harmony and inner happiness.