Book excerpt: Throughout history to the present day, religion has ideologically fueled wars, conquests, and persecutions. Christianity and Islam, the world's largest and geopolitically powerful faiths, are often positioned as mortal enemies locked in an apocalyptic clash of civilizations. Rarely are similarities addressed. Dreaming in Christianity and Islam, the first book to explore dreaming in these religions through original essays, fills this void. The editors reach a plateau by focusing on how studying dreams reveals new aspects of social and political reality. International scholars document the impact of dreams on sacred texts, mystical experiences, therapeutic practices, and doctrinal controversies.