What are some of the main teachings and stories described in Chapter 22 of the Shri Sai Satcharitra?

Chapter 22 of the Shri Sai Satcharitra begins with a profound invocation, praising the Sadguru as the embodiment of bliss and the destroyer of worldly fears. The text uses the metaphor of a snake and a rope to explain the nature of illusion and reality, identifying the Guru as the one who both creates and removes this illusion. A significant portion of the chapter, as detailed in these verses, is dedicated to the greatness of Baba's feet. It describes how devotees longed for his vision and how Baba would fulfill this by having them gaze at his big toe's nail, which shone like a crescent moon. This chapter also recounts the famous story of Das Ganu, who wished to bathe at Prayag. Baba instructed him that His big toe was Prayag, and when Das Ganu obeyed, the holy waters of the Ganga and Yamuna miraculously flowed from it.