How does Chapter 20 explain the fundamental nature of Sai Baba and his physical form?

Chapter 20 begins by exploring the divine nature of Sai Baba, presenting a profound philosophical view. It states that Sai is originally formless but chose to take on a physical form solely for the benefit of his devotees, comparing his worldly existence to an actor playing a role. The chapter refers to him as a 'Siddhashram' (abode of the perfected), whose mere sight relieves the fatigue of worldly life and whose presence drives away the delusion of existence for those near him. By taking on a form, he provides a focal point for meditation and grace, ultimately giving his followers the shelter of eternal rest and ending the cycle of rebirths.