How does Chapter 30 describe Sai Baba's nature, particularly the concepts of Nirguni and Saguni?

Chapter 30 of the Sai Satcharitra beautifully illustrates the dual nature of Sai Baba. It begins by addressing Him as the formless, or Nirguni, in His primordial state. However, the text explains that through the power and qualities of devotees' devotion, He draws this formless essence into a form with attributes, becoming Saguni. This chapter portrays Him as the "crest-jewel among saints," who takes on a form to fulfill the unavoidable task of uplifting His devotees. He is described as a compassionate "abode of mercy" (Karuṇālaya) whose darshan dispels the fear of worldly existence.