Iamblichus
An unparalleled compendium of knowledge from the ancient Egyptian and Chaldaean mystery traditions, Theurgy by the neoplatonist philosopher Iamblichus is an encyclopedic history of cultic beliefs and practices in the ancient Near East. Through a concise description of their esoteric principles, this book reveals the origins and development of ancient spiritual traditions regarding cosmology, divination, the afterlife, and many other subjects.