How is Sai Baba's divine nature and purpose for his devotees explained in the opening verses of Chapter 20?

The beginning of Chapter 20 describes Sai Baba in profound terms, portraying him as a "Siddhashram," or an abode of the perfected, whose very sight relieves the fatigue of worldly life and ends the cycle of rebirths. It states that for those close to him, the delusion of existence is driven away by his constant presence. The chapter further explains that Sai is "originally formless" but took on a physical form for the sake of his devotees, comparing him to an actor assuming a role. This highlights the teaching that while Baba appeared in a human body, his true nature is formless and divine, manifested to guide followers.