Analyze Ratanji's prayer at the feet of Gajanan Maharaj and explain its significance in the context of his childlessness.

This question contains a factual inaccuracy, as Ratanji did not pray at the feet of Gajanan Maharaj in the provided text. According to Chapter 14, Ratanji traveled to Shirdi to meet Sai Baba and prayed to him. Upon sitting near Sai Baba, Ratanji made a heartfelt plea, saying 'When people fall into great calamity, they come near Your feet; Baba protects them instantly—I have heard this. Therefore, I have come here for a meeting... do not turn me away.' This prayer is significant because it shows Ratanji's desperation and faith in Sai Baba's power to solve his profound sorrow of being without a son, which he considered a 'great calamity.' The entire episode revolves around his faith in Sai Baba, not Gajanan Maharaj.