Why does the author of Sai Satcharitra find it so difficult to describe Sai Baba's greatness in Chapter 49?

The author expresses the profound difficulty in capturing Sai Baba's greatness through words in Chapter 49. He explains that Sai's Leela, or divine play, is inexpressible and his art is inconceivable. To illustrate this limitation, the text references the different stages of speech, noting that where the transcendental speech (Para) returns and the middle stages (Pashyanti, Madhyama) find no mention, the fourth stage of the spoken word (Vaikhari) is utterly inadequate. Despite knowing this limitation, the author is compelled to write, crediting Sai's own grace for giving him the remembrance of the stories needed to complete the book.