How does Chapter 20 describe the fundamental nature of Sai Baba and his purpose for taking a physical form?

In Chapter 20, Sai Baba is described as being originally formless. He is said to have taken on a physical form purely for the sake of his devotees, accepting the role of 'Maya' and playing his part like an actor. The chapter refers to him as a 'Siddhashram' (abode of the perfected), whose mere sight relieves the fatigue of worldly life. His presence is powerful enough to drive away the delusion of existence for those who are close to him, highlighting his compassionate purpose in manifesting for the benefit of his followers.