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

Chapter 22 of the Shri Sai Satcharitra begins with devotional invocations, describing the Sadguru as the ultimate reality who creates and dispels illusion, much like a rope mistaken for a snake in dim light. The text emphasizes that devotion to the Guru's feet is the sole path to happiness. It then illustrates this point with two key narratives. The first compares the longing for the crescent moon to the devotees' spiritual yearning, which Baba fulfills by showing them his toenail shining like the moon. The second recounts the story of Das Ganu, who wished to visit Prayag. Baba proclaimed his own big toe to be Prayag, and when Das Ganu bowed, the holy Ganga and Yamuna rivers flowed from it, demonstrating that the Guru's feet are the ultimate pilgrimage site.