I read that Chapter 12 introduces a story about a man from Nashik. Who was this person and why was his visit to Shirdi considered significant?

Chapter 12 introduces a story about a "ritualistic, orthodox Agnihotri" from the holy city of Nashik, whose surname was Mule. His visit to Shirdi is presented as a highly significant event, described as a "stroke of good fortune." The chapter explains that his arrival was due to the strength of his past merits, emphasizing that without such merit, no one can stay in Shirdi for even a moment. His visit is considered a "rare meeting with Sai" that was part of his destiny, even though his original intention for the journey was different. The text frames this as a delightful story that serves to illustrate the greatness of the Guru.