In the autumn of 1912, Rudolf Steiner presented the first eurythmy performance. It marked the revival, in modern form, of the sacred art of dance, which had been used in the ancient Mysteries to express the movements of the stars and the planets. In the years that followed, Steiner and his wife, Marie von Sivers, developed eurythmy further, broadening it beyond the artistic to encompass healing and educational elements as well. One of the pioneers of this new form of movement was the Russian anthroposophist Tatiana Kisseleff, who became a student of Steiner's and later a celebrated eurythmy...