Sema is the Dance of Sufism, which is mostly connected to the founder of the Mevlevi Dervishes Mevlana Celaleddin Rumi, wo lived in the 13th century in Turkey. One of the special and unique contributions of Dr. Rahmi Oruç Güvenç was that he revived the Tradition of the Whirling Dance in it´s primordial form, how it was practiced at the time of Mevlana. This opens a window into a 1000 years old Tradition, which would be lost without his contribution.