How did Boss Dharamsee's skeptical attitude towards Sai Baba change during his visit to Shirdi?

Boss Dharamsee arrived in Shirdi with a sense of 'clinical scrutiny,' questioning what was so special about the place. As narrated in Chapter 35, his skepticism was profound when Baba offered him grapes with seeds, a variety he disliked and which his doctor forbade him from eating unwashed. He even questioned Baba's sainthood in his mind. However, his attitude completely transformed when Baba commanded him to eat the grapes, and he discovered they had miraculously become seedless. This personal experience shattered his ego, erased his doubts, and ignited a deep love and devotion for Sai Baba in his heart.