Could you provide details about the location and spiritual importance of Shirdi as mentioned in the source material?

The provided text describes Shirdi as a sacred place that became famous on the banks of the holy Godavari river. Chapter 4 highlights the spiritual significance of the location, stating that the Godavari's holy water and cool breeze are 'destroyers of the darkness of worldly existence.' Geographically, it is situated in the Kopergaon Taluka within the Ahmednagar district. To reach it, one would cross the Godavari near Kopergaon and travel for about three 'kos,' or approximately nine miles. The text attributes Shirdi's great merit and fame to the presence of Sai, the 'Lord of Yoga,' who appeared there for the upliftment of the world.