Rooted in the Earth, Rooted in the Sky is a detailed study of the medicine of Hildegard of Bingen, a medieval mystic, theologian and composer, who also wrote a practical medical text. Although there has been an explosion of interest in Hildegard's music, theology, illuminations and medicine in the last two decades, this is the first book to use her remarkable text to revise not only our conception of Hildegard but also of premodern medicine itself...