Can you tell me about the story of the Agnihotri from Nashik that's introduced in Chapter 12?

Chapter 12 introduces a 'very delightful story' about a ritualistic and orthodox Agnihotri, who is a keeper of the sacred fire, from the holy place of Nashik, whose surname was Mule. The text explains that due to the strength of his past merits, he once came to Shirdi. It's noted that his original intention for the visit was different from what ultimately occurred, but this unexpected turn of events led him to gain the benefit of being in Shirdi and, significantly, his 'own Guru came into his sight.' Chapter 12 frames this story as an illustration of the Guru's greatness and the fortunate coincidences that bring devotees to their master.