Why does the author of the Sai Satcharitra say it's so hard to describe Sai Baba's greatness in Chapter 49?

In Chapter 49, the author expresses the profound difficulty of capturing the Sadguru's greatness in words, calling his Leela "inexpressible" and "unfathomable." He explains that this isn't just his personal limitation; even the sacred Vedas and Puranas "grew weary of praising the Sadguru." The chapter delves into the philosophy of speech, noting that where the transcendental (Para) speech itself returns, the lower forms of speech—Pashyanti, Madhyama, and especially the spoken word (Vaikhari)—are utterly inadequate for the task. The author concludes that true comprehension doesn't come from description but through surrender, stating, "Without surrendering at the Sadguru’s feet, the true form does not come to hand."