This 8th century Monastic work is a preface to a medical treatise addressed to Mauro, emphasizing the importance of medicine and the cultivation of herbal knowledge. The author expresses a personal connection to Mauro, having raised him and imparted wisdom. The treatise outlines various remedies for ailments such as headaches, dental pain, phrenitis, eye issues, and more, using a combination of herbs and other natural substances. The author aims to encourage Mauro to appreciate the value of medicine by providing practical solutions for health concerns.