How does Chapter 20 describe Sai Baba's fundamental nature and his appearance in the world?

Chapter 20 offers profound insights into Sai Baba's nature, describing him as a being who is "originally formless." The text explains that he took on a physical form for the benefit and sake of his devotees. It uses the analogy of an actor, stating that Baba accepted the role of "Maya" (the actress) and skillfully played his part. This chapter also refers to his presence in Shirdi as a "Siddhashram" (abode of the perfected), where the mere sight of him could relieve the fatigue of worldly life and drive away delusion for those close to him, emphasizing the transformative power of his physical manifestation.