What are the main principles and warnings for devotees discussed in Chapter 9 of the Shri Sai Satcharitra?

Chapter 9 of the Shri Sai Satcharitra emphasizes several key principles for devotees. A primary teaching is the absolute necessity of obtaining Sai Baba's permission before departing from Shirdi. The chapter warns that leaving without his consent invites obstacles and trouble, while overstaying after permission is granted also leads to suffering. This is presented as a distinct characteristic of a Shirdi pilgrimage. Furthermore, the chapter introduces the idea that Baba's lifelong habit of begging for food was a practice for the welfare of his devotees, meant to remove their sins. It also conveys the profound spiritual message that Sai is omnipresent and that God resides in all beings.