How does Chapter 30 explain the transition of Sai Baba from a formless to a tangible entity?

Chapter 30 poetically explains that Sai Baba initially resides as the formless, or 'Nirguni'. However, the text clarifies that it is through the 'qualities of devotees' devotion' that this formless divine is drawn into a 'Saguni' state, which is a form with attributes. This chapter beautifully articulates that the intense faith and love of the followers are the very forces that cause the formless Absolute to manifest in a perceivable form, allowing Him to interact with and uplift them as the 'crest-jewel among saints'.