In what ways did Sai Baba show his devotees that he was connected to the deity Vitthal?

Sai Baba demonstrated his connection to Vitthal in several instances described in Chapter 4. He once told Das Ganu that Vitthal would appear if a devotee was full of faith, and Das Ganu subsequently had a vision of Vitthal in Shirdi. In another case, when Kakasaheb Dixit had a vision of Vitthal during meditation, Baba confirmed it by asking, "Vitthal Patil had come, right?" Furthermore, Baba addressed Bhagwantrao Kshirsagar's neglect of his family's Vitthal idol by saying that this neglect left both Vitthal and Baba himself hungry. Through these experiences, Baba showed his devotees that he and Vitthal were one and the same, emphasizing that sincere faith was the key to experiencing this truth.