How does Chapter 30 describe Sai Baba's transformation from formless to form?

Chapter 30 poetically explains that Sai Baba initially resides as the formless, or 'Nirguni'. However, it is through the compelling qualities of his devotees' devotion that he is drawn into a form with attributes, referred to as 'Saguni'. This chapter beautifully illustrates that Sai's manifestation in a physical form is a direct response to the faith and love of his followers, making the formless accessible to them. This highlights his role as the 'crest-jewel among saints' who takes on a form out of compassion for those who seek him.