Can you explain how Sai Baba showed his connection to Lord Vitthal through his interactions with devotees?

Chapter 4 provides several examples of Sai Baba demonstrating his profound connection to Lord Vitthal. For instance, when Das Ganu organized a Name-week (Saptah) and insisted that Vitthal must appear, Baba placed a hand on His chest and assured him that Vitthal's form would manifest for a devotee full of faith. Another significant event involved Kakasaheb Dixit, who had a vision of Vitthal during meditation. Baba later confirmed this vision by asking him, "Vitthal Patil had come, right?" This was further validated when a picture seller arrived with an image identical to Dixit's vision. Lastly, Baba showed his respect for Vitthal worship by reprimanding Bhagwantrao Kshirsagar for neglecting his family's Vitthal idol after his father's death, showing that the worship was important to Baba himself.