Can you describe the miracle that made the people of Shirdi realize Sai Baba's true power?

The pivotal event that changed the villagers' perception of Sai Baba was the miracle of lighting lamps with water. Chapter 0 recounts that Baba was fond of lighting many lamps in the Masjid and temples, for which he would collect oil from grocers. One day, the grocers refused to give him any, claiming they had none. Unperturbed, Baba filled his lamps with water instead of oil and proceeded to light them. To the astonishment of the onlookers, the lamps lit instantly and burned brightly all through the night. This miraculous event made the people realize their mistake, and they surrendered to him, apologizing for their previous insults.