For many in the West, the ecstatic dancing ritual of whirling dervishes is the most recognizable aspect of Sufism. Sufism is the mystical branch of Islam, with which Muslims throughout the world identify. It emphasizes direct knowledge of the divine within each person. Its adepts see meditation, music, song, and dance as integral to the spiritual quest. The Chishti Sufi order is among the oldest and most popular of all Sufi traditions. Though most...