What are the primary teachings and stories found in Chapter 22 of the Shri Sai Satcharitra?

Chapter 22 of the Shri Sai Satcharitra delves into several profound themes. It begins with a philosophical exploration of illusion and reality, using the metaphor of a snake appearing as a rope in dim light to illustrate how the Sadguru is both the creator of illusion and the one who removes it. The chapter then emphasizes the deep devotion of followers, who find that the only path to absolute happiness is through meditating on Baba's form and seeking his feet. This is illustrated with an analogy where the nail on Baba's big toe is compared to the crescent moon, satisfying the devotees' longing for a vision. Finally, Chapter 22 recounts the story of Das Ganu, who was shown that Baba's big toe was the holy pilgrimage site of Prayag when the sacred waters of the Ganga and Yamuna manifested from it.