Why does the author of the Satcharita feel that words are inadequate to describe Sadguru Sai's greatness in Chapter 49?

The author expresses the profound challenge of capturing Sai's greatness in words by pointing out that even the ancient Vedas and Puranas "grew weary of praising the Sadguru in all His aspects." As mentioned in Chapter 49, he describes Sai's divine play (Leela) as "inexpressible" and his art as "inconceivable." The text delves deeper by referencing the different stages of speech, noting that where transcendental (Para) speech returns and the middle stages (Pashyanti, Madhyama) do not open their mouths, the fourth stage of the spoken word (Vaikhari) is utterly powerless. This illustrates that Sai's true nature exists beyond the limits of human comprehension and language, making any attempt to describe Him inherently incomplete.