Based on the provided text, what is the proper etiquette when visiting a Guru, and how are a devotee's inner reservations handled?

The narrative in Chapter 35 provides insight into the etiquette of visiting a Guru. It explicitly states, 'It is not good to go empty-handed to the door of God, a priest, or a Guru.' This principle is demonstrated by Kaka, who thoughtfully bought two seers of grapes as an offering for Baba. The text then contrasts this with the experience of Boss Dharamsee, who, despite being part of the group making the offering, had inner reservations and dislikes. He disliked the seeded grapes and questioned Baba's awareness. Baba, in his unique way, handled this not by chastising him but by directly addressing the unspoken doubt through a miracle, turning the seeded grapes into seedless ones just for him, thereby transforming his doubt into faith.