The Satcharitra mentions Sai Baba transitioning from formless to having a form. How does Chapter 30 explain this process?

Chapter 30 poetically describes Sai Baba's manifestation from the formless (Nirguni) to a form with attributes (Saguni). The text explains that while He initially resides as formless, it is through the "qualities of devotees' devotion" that this transformation occurs. Essentially, the power and purity of a devotee's love and faith draw the formless divine into a tangible form that they can perceive and interact with. This concept, as detailed in Chapter 30, highlights that Sai's physical manifestation is a direct and compassionate response to the yearning of His followers, establishing Him as the "crest-jewel among saints."