How did the author come to be known as 'Hemadpant' and what was his initial character like?

The author reveals in Chapter 2 that he was initially mischievous, talkative, cynical, and critical. He was proud of his own wisdom and prone to argumentation, possessing what he calls a 'logic-driven mind.' The text promises to tell the sub-story of how he received the name 'Hemadpant' to satisfy the reader's curiosity, as the name 'Composed by the devotee Hemadpant' appears at the end of every chapter. This naming ceremony story is presented as an inspiration from Sai himself.