Why does the author interrupt the main narrative to explain the origin of the name 'Hemadpant'?

The author pauses the main life story of Sai to explain the name 'Hemadpant' for a specific reason outlined in Chapter 2. He acknowledges that at the end of every chapter, the book is credited as being "Composed by the devotee Hemadpant." This naturally raises the question among readers, "Who is this 'Pant'?" The author states that he is telling this sub-story to satisfy that curiosity, fulfilling a promise he made to the listeners at the end of the first chapter. He also attributes this digression to divine will, noting that sharing this story is also "Sai’s inspiration," after which the main sequence of Sai's life story will continue.