Can you provide a summary of the teachings and events described in Chapter 22 of the Shri Sai Satcharitra?

Chapter 22 of the Shri Sai Satcharitra begins with powerful invocations and salutations, describing the Sadguru as the embodiment of bliss and the destroyer of worldly fears. The text explores the philosophical nature of reality and illusion, using the metaphor of a rope being mistaken for a snake. It emphasizes that the Sadguru is the source of both illusion and its removal. A significant portion of the chapter is dedicated to the sanctity of Baba's feet, which are presented as the only path to happiness. This is illustrated through the story of Das Ganu, who wished to visit Prayag for a holy bath. As recounted in Chapter 22, Baba declared his own big toe to be Prayag, and when Das Ganu placed his head there, the waters of the Ganga and Yamuna miraculously flowed from it.