¿De qué se trata este curioso ritual en Bulgaria?

Members of an international religious movement called the White Brotherhood perform ritual dances on the top of the Rila Mountain, near Babreka lake, on August 19, 2013. The teaching of the movement, whose founder is Bulgarian Peter Deunov, combines aspects of Christianity and Hinduism with a heavy emphasis on brotherly love, a healthy diet and living in harmony with nature. AFP PHOTO / DIMITAR DILKOFF