Nataraja, the "Dancing King", is in turn an aspect of the Hindu God Shiva, depicted in bronze statues from the Chola dynasty.The asana was most likely introduced into modern yoga by Krishnamacharya in the early 20th century, and taken up by his pupils, such as B. K. S. Iyengar, who made the pose his signature.[6] The pose is among some twenty asanas depicted in 13th – 18th century Bharatnatyam dance statues of the Eastern Gopuram, Nataraja Temple, Chidambaram.[9] This aesthetic, stretching and balancing asana is said to require concentration and grace;[10] it is used in the Indian classical dance form Bharatanatyam."[11] The pose is entered from standing in Tadasana, bending one knee and stretching that foot back until it can be grasped with the hand on that side.