I heard Chapter 11 mentions Sai Baba's power over nature. Can you explain what it says about that?

Yes, Chapter 11 of the Sai Satcharitra introduces the theme of Sai Baba's complete control over the elements of nature. The author explicitly states that the chapter will demonstrate Baba's greatness and his authority over the five elements. It specifically promises to illustrate how the deities Indra (associated with rain and sky), Agni (fire), and Varuna (water) obey Baba's commands. This introduction, as described in Chapter 11, sets the stage for stories that prove his divine mastery, presenting it as a key aspect of his power and a reason for devotees to meditate on his manifest form.