How does Chapter 30 describe Sai Baba's nature, particularly his transition from formless to having a form?

Chapter 30 of the Sri Sai Satcharita explains that Sai Baba's fundamental nature is formless (Nirguni). However, it is through the devotion and faith of his followers that he is drawn into a form with attributes (Saguni). The text poetically states, "In the beginning, You reside as the formless (Nirguni). Then, through the qualities of devotees' devotion, You draw the formless into form with attributes (Saguni)." This illustrates a core teaching that the divine, while inherently beyond form, manifests in a perceivable way as a compassionate response to the devotee's love and faith, making the formless accessible to all.