Peter Deunov (1864--1944), also known by the spiritual name Beinsa Douno, was a spiritual teacher in Bulgaria best known internationally for giving the Paneurhythmy, a communal dance set to music to promote spiritual development and physical health. The Iron Curtain obscured his teaching for forty-five years, but since the end of the Cold War the recognition of its value has spread. This awareness, which began slowly, has very much increased in recent years.