Can you recount the story of Das Ganu's desire for a holy bath and how Baba fulfilled it in an unexpected way?

Certainly. As recounted in Chapter 4, Das Ganu once felt a strong urge to bathe in the holy Prayag on a special day and sought Sai Baba's permission to travel there. Baba advised him against the long journey, stating, "This itself is our Prayag; keep firm faith in your mind." In a miraculous demonstration of this truth, as Das Ganu bowed at Baba's feet, water representing the sacred Ganga and Yamuna rivers began to flow from Baba's big toes. Witnessing this divine leela, Das Ganu was overwhelmed with emotion, realizing that true pilgrimage and its merits could be found through unwavering faith in his Guru, right there in Shirdi.