Yantras or Mechanical Contrivances in Ancient India c2.168

c2.168

13. The securing of the rhythmic quality in motion (particularly in entertainment-wares).
14. Going into action when required.
15. Resumption of the still state when not required (chiefly in cases of the pieces for pastime).
16. Freedom from an uncouth appearance.
17. Verisimilitude (in the case of bodies intended to represent birds, animals etc.).
18. Firmness.
19. Softness.
20. Durability. (45-49).