What are the primary teachings and themes introduced in Chapter 9 of the Sai Satcharitra?

Chapter 9 of the Sai Satcharitra lays out several significant teachings for devotees. A central theme is the absolute importance of obtaining Sai Baba's permission before leaving Shirdi, as the text warns that departing without his consent invites obstacles and suffering. Conversely, once permission is granted, one should not delay. The chapter also explains that Baba's lifelong habit of begging for food was a selfless act for the welfare of his devotees, specifically for the removal of the ‘Panchasuna’ and other sins. Furthermore, Chapter 9 conveys the profound spiritual truth that Sai is omnipresent, pervading everything from Brahma to the smallest inanimate object, thereby teaching that God resides in all beings.