In the waning years of the Roman Empire, Jews, Christians, and pagans alike used rituals to bridge the gap between the human and the divine. Depending on one"s point of view, however, such rituals could be labeled negatively as "magic" or positively as "theurgy." This has led to numerous problems of interpretation, including marginalizing certain ritual practices as magic or occult while privileging others as genuine or orthodox. In Icons of Power, Naomi Janowitz sifts through the polemics to make sense of the daunting mosaic of religious belief and practice in Late Antiquity. From rabbis who ascended to heavenly places, to sorcerers seeking to harm enemies with spells, to alchemists working metals to purify the soul, Janowitz reveals how ritual practitioners held common assumptions about why their rituals worked and about how to perform those rituals. Indeed, such assumptions were so much a part of the inherited mentality of the age that they were, for the most part, never...