Why does Chapter 49 emphasize that it's impossible to fully describe Sai's greatness with words?

Chapter 49 explains that the Sadguru's greatness is inexpressible and unfathomable, making any verbal description inadequate. The text states that even the Vedas and Puranas grew weary of praising the Sadguru, highlighting the futility of the attempt. The author notes that his own speech cannot describe Sai's divine play or 'Leela'. As referenced in Chapter 49, the text delves into the limitations of the four stages of speech, noting that where transcendental (Para), visionary (Pashyanti), and mental (Madhyama) speech fail, the fourth stage, the spoken word (Vaikhari), is utterly powerless to capture the Sadguru's essence.