How does the author of the Sai Satcharitra justify writing a new book about Sai Baba when other accounts already existed?

In Chapter 2, the author anticipates that listeners might question the need for a new book. He explains that Sai Baba's life is like a "vast ocean, an infinite mine of jewels," and it is impossible to describe it completely. He compares his effort to a small Titwi bird trying to empty the ocean, suggesting that any attempt can only capture a fraction of the whole. The author believes that Sai's unique and infinite stories provide peace from worldly troubles and give devotees enthusiasm and steadiness of mind. Therefore, as mentioned in Chapter 2, one should find satisfaction in whatever can be told, as no single account can be exhaustive.