Bharatanatyam, according to Balasaraswati, is a variety of natya yoga that reveals the spiritual through the physical and emotional body. It is the most popular of the Indian classical dance forms in South India, and the most ancient of all the classical Indian dance styles in the entire India, which are all based on Natya Shastra, the Bible of the classical Indian dance. The term “Bharatanatyam” was used by Purandara Dasa (1484-1564). Later, Ghanam Krishnayyar’s songs describes a devadasi as an expert at Bharata natyam. Subramania Bharathi also speaks about Bharatnatyam.