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

Chapter 30 portrays Sai as a compassionate "abode of mercy" (Karuṇālaya) whose darshan removes the fear of worldly existence. The text explains a profound theological concept: initially, Sai resides as the formless (Nirguni), but through the power of His devotees' devotion, He is drawn into a form with attributes (Saguni). This chapter identifies Him as the "crest-jewel among saints" and emphasizes that the task of uplifting devotees is an inescapable responsibility for saints like Him. This illustrates how the devotee's love and faith can manifest the divine in a perceivable form.