How did Sai Baba remind Bhagwantrao Kshirsagar about his forgotten duties, including the 'Shraddha' ceremony?

Sai Baba used his divine insight to remind Bhagwantrao Kshirsagar of his neglected spiritual duties. When Bhagwantrao came to Shirdi, Baba revealed that his father was an old friend and that he had drawn Bhagwantrao there for a specific reason. Baba pointed out that Bhagwantrao had stopped the family tradition of worshipping the household idol of Vitthal and had even neglected the 'Shraddha' (death anniversary ceremony) for his father. As detailed in chapter 4, Baba said, "He never offers food (Naivedya); he keeps me hungry too. He keeps Vitthal hungry too, that’s why I brought him to Shirdi." Through these words, Baba lovingly prompted him to resume the worship and fulfill his ancestral responsibilities.