Based on Chapter 20, what is the fundamental nature of Sai Baba and his relationship with his devotees?

Chapter 20 presents a multi-faceted view of Sai Baba's nature. It begins by describing him as a "Siddhashram" (abode of the perfected), whose mere sight relieves the fatigue of worldly existence. Philosophically, the chapter states that Sai is "originally formless, but took form for the sake of his devotees," comparing his earthly manifestation to an actor playing a role. This form allows devotees to meditate upon him and receive his grace. His relationship is one of immense love, as seen when he distributes Udi with "boundless love in his heart" and personally applies it to his followers' foreheads.