What does this chapter say about the transition of Sai from a formless to a formed being?

Chapter 30 explains a profound theological concept about Sai Baba's nature. It states that in the beginning, He resides as the formless, or 'Nirguni'. However, it is through the powerful qualities of his devotees' devotion that He is drawn from this abstract state into a tangible form with attributes, known as 'Saguni'. This illustrates that the manifestation of the divine in a physical form is a direct response to the love and faith of the followers. The text praises him as the 'crest-jewel among saints' for embodying this principle for the sake of uplifting his devotees.