Can you explain the philosophy of impermanence and the eternal nature of Sai Baba as presented in Chapter 11?

Chapter 11 of the Sai Satcharitra delves into the concept of impermanence by stating that the physical body is perishable and will eventually end. It advises that a devotee should not grieve over this but should instead focus on the 'beginningless and endless,' the Eternal. The text explains that the entire visible creation emerges from the Unmanifest and ultimately merges back into it. Therefore, as Chapter 11 concludes, there is no real death for anyone. Applying this logic to Baba, the chapter asserts that Shri Sai is eternally pure, enlightened, untainted, and deathless, transcending the limitations of the physical form that devotees worshipped.