In this Thursday, April 23, 2015 photo, whirling dervish Mahmoud Rizk, a member of the Al-Tannoura Egyptian Heritage Dance Troupe, adjusts his “sikke,” a brown tall felt cap made of camel wool, backstage before a performance, at the El Sawy cultural center in Cairo, Egypt. The Whirling Dervishes art form draws its roots from the ecstatic movements of Sufi Muslim mystics seeking a state of delirious oneness with God. Religious devotion is at the heart of almost everything. The spinning of the dervish dancers is partially meant to symbolize the way Muslim pilgrims performing the Hajj pilgrimage ritually circle the cube-shaped Kabaa in Mecca, Saudi Arabia. (AP Photo/Amr Nabil)