How does the author of the Sai Satcharitra use the concept of different stages of speech to describe the challenge of praising Sai Baba in Chapter 49?

In Chapter 49, the author explains the profound difficulty of describing Sai's greatness by referencing the Hindu philosophy of speech. It is mentioned that even 'Para' (transcendental) speech returns, unable to capture His essence. The subsequent stages, 'Pashyanti' and 'Madhyama', also 'do not open their mouths.' This leaves the fourth and most gross stage, 'Vaikhari' (the spoken word), as utterly incapable of the task. By illustrating that all levels of speech fail, the author emphasizes that Sai's nature is truly inexpressible and beyond human comprehension, making this a deep philosophical point within the chapter.