Beyond sleeping on a plank, what are some of the key divine characteristics and principles of Sai Baba highlighted in the beginning of Chapter 11?

The introduction to Chapter 11 highlights several of Sai Baba's significant attributes and teachings. It establishes his principle of equality, noting that he treated Hindus and Muslims alike, viewing his service to them as an act of worship. Furthermore, the chapter frames his divine plays, or 'leelas,' as inscrutable, pointing to his mysterious power. A central theme introduced is the importance of devotion to a manifest (Saguna) Guru, which Chapter 11 likens to the powerful chanting of the Eleven Rudras. It also asserts his complete authority over the elements of nature, setting the stage to demonstrate his divine greatness.