Visions of Hildegard von Bingen display a rich symbolic universe, which is the subject matter of this book. Through various approaches trying to understand the phenomenon visionary, and as extraordinary experience, and as part of the creative process. The flowering of images, description and plastic Reflection is approached from comparisons that offer counterpoints to the case of the twelfth century Rhineland mystic, such as the Apocalypse of John of Patmos, the Eastern spiritual light and studied by the philosopher iranólogo Henry Corbin, or the work of surrealist artist Max Ernst. The creative imagination of Hildegard von Bingen appears as the origin of a Western visionary tradition, sacred and secular, whose aesthetic is based on the value of the images.