Can you tell me the story about Boss Dharamsee and the grapes miracle?

Certainly. The story of Boss Dharamsee, found in Chapter 35, illustrates how Baba addresses a devotee's skepticism. Dharamsee visited Shirdi with a clinical and curious mind. A devotee named Kaka had offered grapes with seeds to Baba, who then began distributing them. Dharamsee disliked this variety and was hesitant to eat them unwashed. He even internally questioned Baba's sainthood for not knowing his preference. In response, Baba gave him more grapes and commanded him to eat. Upon doing so, Dharamsee was amazed to find they were perfectly seedless. This miracle shattered his ego, replacing it with love and a firm resolve to return to Shirdi, demonstrating Baba's omniscience and transformative power.