Why does the author interrupt the main narrative to explain how he received the name 'Hemadpant'?

The author pauses the main story of Sai Baba's life to satisfy a curiosity he anticipates from his readers. As detailed in Chapter 2, he notes that the end of every chapter includes the line, "Composed by the devotee Hemadpant." He understands this will naturally lead listeners to wonder who this person is. Having promised in the first chapter to tell this story, he feels it is an appropriate time to fulfill that promise, viewing it as an inspiration from Sai. He believes sharing this sub-story will satisfy the audience's curiosity before continuing with Sai's life story.