Ernst's research, based on rare Persian manuscripts preserved in Sufi shrines in the medieval town of Khuldabad, a major center of pilgrimage in the Indian Deccan, reveals the mystical teachings and practices of the Chishti Sufi order as taught by the ecstatic Shaykh Burhan al-Din Gharib (d. 1337) and his disciples. The book clarifies the diverse historiographical approaches found in an array of narratives. It redefines major topics in the often emotionally charged study of religion and history in South Asia, and it raises provocative theses on much-argued topics such as the basis of Islamic political power in South Asia and the alleged roles of Sufis as warriors and missionaries.