Written in Judeo-Arabic in eleventh-century Muslim Spain but quickly translated into Hebrew, Bahya Ibn Paquda's Duties of the Heart is a profound guidebook of Jewish spirituality that has enjoyed tremendous popularity and influence to the present day. Readers who know the book primarily in its Hebrew version have likely lost sight of the work's original Arabic context and its immersion in Islamic mystical literature. In A Sufi-Jewish Dialogue , Diana Lobel explores the full extent...