What is the significance of Sai Baba's photograph in the story of Dixit's journey to Nagar?

The photograph of Sai Baba played a pivotal role in strengthening Kakasaheb Dixit's faith and joy. According to Chapter 51, the portrait had been sent from Shirdi to Nagar for repair after its glass broke. It was being kept, covered, in Mirikar's drawing room. Balasaheb Mirikar unveiled it just as Dixit and Madhavrao finalized their travel plans, entrusting it to Madhavrao for the journey. Seeing the very image of the Guru whose darshan he longed for was a profound experience for Dixit, who felt it was a miraculous sign that Baba himself had come to accompany him.