What advice did Das Ganu give to the troubled merchant Ratanji, and what was the outcome of this advice?

When the wealthy merchant Ratanji was deeply troubled by his lack of a son, he confided in Das Ganu, in whom he had great faith. According to Chapter 14, Das Ganu's advice was for Ratanji to go to Shirdi and seek the help of Sai Baba. Ganu instructed him to take Baba's darshan, prostrate at his feet, and reveal the secret of his heart from beginning to end. Ganu expressed his own confidence that Baba would provide words of blessing and that Ratanji would be fulfilled by surrendering to him. The outcome of this advice was that the idea appealed to Ratanji, who then made a resolution and traveled to Shirdi to meet Sai Baba in the Masjid.