What are the primary teachings and stories presented in Chapter 9 of the Sai Satcharitra?

Chapter 9 of the Sai Satcharitra focuses on several key themes and illustrative stories. A central teaching is the absolute necessity of obtaining Sai Baba's permission before departing from Shirdi, as the chapter states that leaving without it invites obstacles. Conversely, it also warns against staying longer than permitted. The chapter recounts an incident with the families of Tatyasaheb Noolkar and Bhausaheb Dixit, whose travel plans went awry after a misstep in following Baba's instructions about their meal. Furthermore, Chapter 9 explains that Baba's lifelong habit of begging for food was a practice for the welfare of his devotees, meant to remove their sins, and reinforces the profound concept that Sai pervades all of existence.