Describe the scene where Das Ganu wished to visit a holy river and the miracle Sai Baba performed for him instead.

Chapter 4 narrates a profound leela involving Das Ganu. On a special holy day, Das Ganu felt a strong desire to travel to Prayag for a sacred bath in the holy rivers. He went to Sai Baba to ask for permission to undertake the pilgrimage. However, Baba advised him against it, saying, "No need to go so far. This itself is our Prayag; keep firm faith in your mind." What happened next was a stunning miracle. As Das Ganu bowed down to Baba's feet, water representing the holy Ganga and Yamuna rivers began to drip from both of Baba's big toes. Witnessing this divine manifestation, Das Ganu was completely overcome with emotion and love, with tears flowing from his eyes. The experience inspired him to compose a song describing Baba's unfathomable power and grace.