What is the significance of the Baba portrait that was at Balasaheb Mirikar's house?

The portrait of Sai Baba at Mirikar's house held special significance and appeared at a providential moment. Chapter 51 explains that this was not just any photograph; it was the one that Baba's devoted disciple, Megha, used to worship with great love, viewing it as Lord Shankar himself. The portrait's glass had broken, so it was sent with Balasaheb from Shirdi to Nagar for repairs. After being fixed, it was kept covered in Mirikar's drawing room, 'as if waiting for Dixit.' Since Balasaheb was not returning right away, he entrusted the sacred, newly repaired portrait to Madhavrao for its return to Shirdi.