According to the source, what is the proper attitude for approaching a Guru like Sai Baba, and how is this illustrated in the story of the grapes?

Chapter 35 advises that the ideal way to approach a Guru is by "Becoming egoless and rolling at his feet," which leads to happiness. It also mentions that one should not go empty-handed. This principle is illustrated through the story of Boss Dharamsee. He arrived with ego and a "clinical scrutiny," which created a "problem at the very beginning." His mind was filled with doubt and dislike for the grapes Baba offered. It was only after Baba shattered his ego through the miracle of the seedless grapes that Dharamsee's "love for the saint was born." This narrative demonstrates that surrendering one's ego is the key to truly experiencing the Guru's grace.