Since other books about Sai Baba already existed, how does the author of Sai Satcharitra justify writing a new one in Chapter 2?

In Chapter 2, the author anticipates the question of why a new book is needed when other stories already exist. He provides a profound justification by comparing Sai’s life to a "vast ocean, an infinite mine of jewels." The author humbly describes himself as a small Titwi bird trying to empty this ocean, an impossible task. This analogy, found in Chapter 2, illustrates that Sai's life is so deep and limitless that it's impossible for any single work to describe it completely. Therefore, any collection of stories is valuable and provides its own satisfaction and benefit to devotees, offering peace from worldly troubles.