Can you explain the story of Boss Dharamsee and the grapes? What was the significance of this event?

Chapter 35 recounts the story of Boss Dharamsee, who visited Shirdi with a skeptical mindset. When Kaka offered grapes with seeds to Baba, Baba began distributing them. Dharamsee, who disliked this variety, ate them reluctantly. He mentally questioned Baba's sainthood for not knowing his preference. Sensing his thoughts, Baba gave him more grapes. When Dharamsee finally ate them at Baba's command, he was astonished to find they were seedless. The significance of this miracle, as described in the chapter, was the complete transformation of Dharamsee's state of mind. His 'clinical scrutiny' and ego vanished, replaced by profound love and devotion for Sai Baba.