Why does the author of Chapter 49 describe Sai Baba's greatness as 'unfathomable' and 'inexpressible'?

The author describes Sai's greatness as 'unfathomable' and 'inexpressible' because he believes human language is fundamentally incapable of capturing the divine. As explained in Chapter 49, even the ancient Vedas and Puranas "grew weary of praising the Sadguru." The author highlights the limitations of speech by referencing the four levels of sound in Hindu philosophy, noting that where the transcendental (Para) speech returns and the middle stages (Pashyanti, Madhyama) are silent, the fourth level, the spoken word (Vaikhari), is utterly powerless. Therefore, he concludes that he cannot possibly comprehend the "inconceivable art of the Unfathomable" through intellect or words, suggesting that true understanding only comes through grace and surrender at the Sadguru's feet.