What is the narrative justification for inserting the story of 'Hemadpant's' naming into the main biography of Sai?

The author provides a specific justification in Chapter 2 for this narrative digression. The trigger is the recollection of Sai's advice, 'Do not engage in dualistic explanations.' This reminds the author of a promise he made to the listeners at the end of the first chapter to explain how he was named Hemadpant. He presents this sub-story not as a random interruption but as a fulfillment of that promise, intended to satisfy the natural curiosity of readers who see his name at the end of each chapter. He frames this decision as being an 'inspiration' from Sai himself, assuring listeners that the main sequence of Sai's life story will resume right after.