How is Sai Baba's divine nature and physical form described at the beginning of Chapter 20?

The beginning of Chapter 20 describes Sai Baba in profound terms. It states that Sai is "originally formless" but chose to take on a physical form for the benefit of his devotees, likening his role to an actor playing a part. The text refers to his presence as a "Siddhashram," an abode of the perfected, where the mere sight of him relieves the fatigue of worldly life. For those close to him, his constant presence is said to drive away the "delusion of existence." This portion of Chapter 20 encourages devotees to bring this very form of Sai into their meditation to experience his grace.