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

Chapter 9 of the Sai Satcharitra opens by outlining several key themes. It emphasizes the trouble and exhaustion faced by devotees who return to their homes from Shirdi without first securing Sai Baba's permission. The chapter also explains that Baba's lifelong habit of begging for food was a practice performed for the welfare of his devotees and to help remove their sins, including the 'Panchasuna'. Furthermore, a central teaching introduced is the concept of Sai's omnipresence, impressing upon followers that God resides in all beings, from the highest celestial being, Brahma, to the smallest inanimate object. As the text suggests, attentive listening to these holy stories leads to one's own welfare.