Mistress Gaia wanted to send this guy to enemy territory. She knew he was going to be tortured and humiliated but she wanted to do it first so that when he went, he would always be ready for whatever was thrown his way. So she whipped, trampled and crushed her slave for fun. She also rode him like her human pony before she felt it was enough punishment for him. She toughened him up so that he would be able to carry out her mission.