Can you explain the miracle of the grapes that Boss Dharamsee experienced with Sai Baba, and what was its effect on him?

The story from Chapter 35 details a profound miracle experienced by Boss Dharamsee. Initially skeptical, Dharamsee was offered grapes with seeds by Baba, a variety he disliked. He was also concerned because the grapes were unwashed. As he hesitated, Baba, knowing his inner thoughts, insisted he eat them. When Dharamsee obeyed, he was astonished to discover the grapes were seedless. This experience completely shattered his skepticism. The text states his "ego dropped away, and love for the saint was born," transforming his clinical scrutiny into deep reverence and a firm determination to return to Shirdi.