KONYA, TURKEY - DECEMBER 10: Whirling dervishes perform during a "Seb-i Arus" (The Night of union) ceremony at Mevlana Cultural Center to mark the 741st anniversary of the death of Mevlana Jalaluddin al-Rumi on December 10, 2014 in Turkey's Konya province where Rumi is buried. (Photo by Orhan Akkanat/Anadolu Agency/Getty Images)