Chapter 49 mentions different stages of speech like Para, Pashyanti, Madhyama, and Vaikhari. How does the author use this concept to explain the nature of the Sadguru?

In Chapter 49, the author employs the Vedic concept of the four stages of speech to articulate the transcendental nature of Sai Baba, which is beyond human comprehension and expression. He notes that where even Para, the transcendental speech, returns from, and where Pashyanti and Madhyama (the middle, unexpressed stages) have no access, the fourth stage, Vaikhari (the spoken word), is utterly powerless. By highlighting the failure of all levels of speech to describe the Sadguru's greatness, the author emphasizes that Sai's true form is inconceivable and can only be grasped through His own grace and by surrendering at His feet, not through intellectual or linguistic efforts. This philosophical point underscores that the Guru's reality is experiential.