Who was Devidas, and what was his relationship with Sai Baba as detailed in Chapter 5?

According to Chapter 5 of the Sai Satcharitra, Devidas was a wise individual who came and settled in Shirdi twelve years before Baba arrived with the wedding party. He was a teacher who taught people like Appa Bhill and instructed them in texts such as the Venkatesh Stotra. His wisdom was so regarded that Tatyaba took him as a Guru. The chapter highlights a significant dynamic where Sai Baba, despite his own spiritual stature, humbly maintained the perspective that "he is the Guru and I am the disciple" in relation to Devidas. This conduct served as a profound lesson in selflessness and the true meaning of discipleship, which Sainath himself practiced.