In what ways does Chapter 11 describe Sai Baba's divine authority and eternal nature?

Chapter 11 illustrates Sai Baba's divine authority by describing his control over the five elements of nature. The text explicitly states that elemental deities like Indra, Agni, and Varuna obey Baba's words, highlighting his supreme power. Regarding his eternal nature, the chapter presents a deep philosophical perspective. It explains that the physical body is perishable, but this should not cause grief because the true essence is beginningless and endless. The entire visible creation, from the creator to a blade of grass, is described as arising from the Unmanifest and ultimately merging back into it. Therefore, as Chapter 11 concludes, there is no real death for anyone, and thus Shri Sai is eternally pure, enlightened, untainted, and deathless.