In the reading on early Indian theater it explain that theres an emphasis on body movement, vocal expression, inner expressivity,and external aspects. This can be sen in both videos in which the actors really seem to have perfected their craft, and the performance focuses on facial expressions, the costume, and the hand gestures.

The source of this information is provided by the Natyasastra, but what is the basis for the categorization of “movement, gesture, and the internal methods of acting the moods and of being of characters”? How does one create a system in which specific body movement has a specific meaning?