Chapter 12 introduces a new character and story. Who is this person and why is their visit to Shirdi considered important?

Towards its end, Chapter 12 sets the stage for a new story by introducing a ritualistic and orthodox Agnihotri (a keeper of the sacred fire) from Nashik, with the surname 'Mule'. His visit to Shirdi is portrayed as a highly significant event, made possible by the "strength of his past merits." The chapter explains that his original intention for the journey was different, but a fortunate coincidence led him to Shirdi, where he gained the benefit of meeting his Guru. This narrative is described as a "very delightful story" intended to illustrate the greatness of the Guru and the love for the Guru's devotees.