I find it hard to explain my spiritual feelings. Does Chapter 49 say anything about the limits of language when trying to describe someone like Sai Baba?

Yes, Chapter 49 directly addresses the inadequacy of language to describe the Sadguru. The author begins by stating that even the Vedas and Puranas grew weary of praising the Guru and that true praise is simply silence. He calls Sai's Leela "inexpressible" and questions how he can possibly comprehend the "inconceivable art of the Unfathomable." The chapter delves deeper by mentioning different stages of speech—Para (transcendental), Pashyanti, and Madhyama—and notes that since they cannot capture Sai's essence, the fourth stage, Vaikhari (the spoken word), is even less capable. This passage from Chapter 49 validates the struggle to articulate profound spiritual realities, confirming that they are beyond the grasp of ordinary words.