What is the significance of making an offering to a Guru, based on the story of Kaka and the grapes?

Chapter 35 highlights the principle that 'It is not good to go empty-handed to the door of God, a priest, or a Guru.' This act of offering is a gesture of respect and humility. Kaka followed this custom by bringing grapes with seeds. The true significance, however, was revealed in how Sai Baba used this simple offering. Baba accepted the grapes and used them as a medium for a profound lesson for the skeptical Boss Dharamsee. As recounted in Chapter 35, the grapes with seeds miraculously became seedless in Dharamsee's mouth. This taught Dharamsee that 'Whatever Sai gives me, they turn out to be seedless and beneficial,' showing that the physical offering becomes a conduit for divine grace and transformative teachings.