Do Angels have free will? We explore the mystery and purpose of angels across spiritual traditions around the world, from ancient past to present day. Normandi Ellis delves into the dimensions of angelic realms, comparing and contrasting various beliefs about angels from well-known Judeo-Christian and Islamic faiths We explore the mystery and purpose of angels across spiritual traditions around the world, from ancient past to present day. Normandi Ellis delves into the dimensions of angelic realms, comparing and contrasting various beliefs about angels from well-known Judeo-Christian and Islamic faiths, the Hindu devata and Buddhist spirit beings, and even the Peacock Angel of Yezidism and the yazatas of Zoroastrianism. She also looks at dark and fallen angels, as well as the purpose of angelic encounters for both believers and nonbelievers.