What is the significance of the grape incident involving Boss Dharamsee, Kaka, and Babasaheb Tarkhad?

The grape incident, described in Chapter 35, is a powerful illustration of Sai Baba's omniscience and his method of nurturing devotion. Kaka brought grapes with seeds as an offering. Boss Dharamsee, a skeptic, disliked this variety and was hesitant to eat them. He mentally questioned Baba's status as a saint for offering him something he disliked. Knowing Dharamsee's thoughts, Baba not only urged him to eat the grapes but miraculously made them seedless for him. When Dharamsee later asked Babasaheb Tarkhad, he confirmed that his own grapes still had seeds. This personalized miracle proved to Dharamsee that Baba knew his specific inner state and had the power to alter reality for his sake, which completely dissolved his ego and established firm faith in his heart.