Which miracle inspired Das Ganu to compose a song about Sai Baba's divine power?

The miracle that inspired Das Ganu's song is detailed in Chapter 4. Das Ganu had desired to go to Prayag for a holy bath on a special day, but Sai Baba told him, "No need to go so far. This itself is our Prayag; keep firm faith in your mind." Immediately after, as Das Ganu bowed to Baba's feet, water representing the Ganga and Yamuna rivers began to flow from Baba's big toes. Witnessing this incredible leela, Das Ganu was overcome with emotion and love, and his speech became inspired. This led him to compose a song describing Baba's unfathomable power and strange leelas.