What are the principal themes introduced at the start of Chapter 11 of the Sai Satcharitra?

The beginning of Chapter 11 introduces several key themes that are central to understanding Sai Baba's nature and the path of devotion. It highlights Baba's greatness and his authority over the elements of nature, setting the stage to explain his divine power. A major theme, as stated in Chapter 11, is the profound importance of devotion to a Saguna (manifest) Guru for spiritual progress. The text also touches upon Baba's principle of equality, noting that he treated both Hindus and Muslims as equals. Finally, it mentions his "inscrutable leelas," like sleeping on a plank, as divine plays that reveal his true nature.