According to the philosophy presented in Chapter 11, why is Sai Baba considered deathless?

Chapter 11 of the Sai Satcharitra explains that the physical body is perishable and will eventually end, a principle that applies to all forms. However, the chapter uses this concept to elevate the understanding of Baba's true nature. It teaches that the entire visible, multifaceted creation emerges from the Unmanifest and ultimately merges back into it. This cosmic process, from the creator down to a blade of grass, illustrates that there is no real death, only a change of form. Therefore, as Chapter 11 concludes, one should not grieve, because Shri Sai is eternally pure, enlightened, untainted, and deathless, existing beyond the confines of his physical manifestation.