What is the significance of the Godavari river and the location of Shirdi as described in the text?

The text from Chapter 4 emphasizes the spiritual significance of the Godavari river and its connection to Shirdi. The Godavari is described as a holy river whose water destroys sins and cures the "disease of worldly life," and it is a place where great saints have flourished. Shirdi's location is situated near this sacred river, about three "kos" (approximately 9 miles) from where one crosses it near Kopergaon. This geographical and spiritual context is important, as the text notes that just as other great saints were associated with this river, Sai, the "Lord of Yoga," appeared on the Godavari for the divine purpose of uplifting the world, making Shirdi his sacred domain.