Tell me about the horse named Shyamakarna and its part in the procession.

The horse Shyamakarna played a prominent role in Sai Baba's procession to the Chavadi. Chapter 37 describes him as a copper-colored horse that stood at the courtyard gate, resplendent and fully adorned with all ornaments. During the procession, Shyamakarna led the way towards the Chavadi, with bells jingling on his feet. The text also mentions the impressive sight of the horse's dance amidst the thunder of drums and trumpets, adding to the majestic and celebratory atmosphere of the event.