What does Chapter 11 teach about the nature of the physical body and the concept of death?

Chapter 11 teaches that the physical body is perishable and will eventually come to an end. Because of this, it advises that a devotee should not grieve over the transient body but should instead focus on the 'beginningless and endless' eternal reality. The chapter explains that the entire creation, from the creator down to a blade of grass, is born from the womb of the Unmanifest and merges back into it. Therefore, as Chapter 11 concludes, there is no real death for anyone, which is why it asserts that Shri Sai is eternally pure, enlightened, untainted, and deathless.