Based on the initial verses of Chapter 30, how is Sai Baba's nature described?

Chapter 30 of the Sri Sai Satcharitra begins by describing the dual nature of Sai Baba. He is initially portrayed as the formless, or 'Nirguni,' but through the devotion of His followers, He takes on a form with attributes, becoming 'Saguni.' The text refers to Him as the "crest-jewel among saints" and an "abode of mercy" (Karunalaya). It emphasizes that His darshan dispels the fear of worldly existence and that He is compassionate to His devotees, always working to uplift them.