How does Chapter 49 explain the limitations of speech in capturing the true nature of the Sadguru?

Chapter 49 delves into the philosophical inadequacy of language to describe the Sadguru. The author states that Sai's Leela is inexpressible and his art is inconceivable. He elaborates on this by referencing the four stages of speech, noting that where the highest, "Para (transcendental) speech returns," and the middle stages, Pashyanti and Madhyama, do not even open their mouths, the fourth stage of the spoken word, Vaikhari, is utterly powerless. This profound explanation, drawn from Chapter 49, illustrates that the Guru's true form is beyond human comprehension and language, and can only be approached through surrender at His feet.