Exercise weight with scene of Krishna killing the horse-demon Keshi 3rd century India (Uttar Pradesh, Mathura) Here, Vishnu assumes his earthly appearance (avatar) as the youthful Krishna, slaying the demon Keshi who attacks in the guise of a horse. This subject very probably has its origins in Hellenistic legends, most notably the labors of Hercules in which the Greek hero slays the horses of Diomedes. The martial prowess of this subject, in which Krishna slays the horse-demon with his bare hands, is an appropriate choice for a bodybuilder's exercise weight.. Exercise weight with scene of Krishna killing the horse-demon Keshi. India (Uttar Pradesh, Mathura). 3rd century. Sandstone. late Kushan period. Sculpture