What is the main story about the Guru and disciple relationship described in Chapter 5?

Chapter 5 tells the story of Devidas, who was a respected teacher in Shirdi even before Baba's return. A Fakir once challenged Devidas and was defeated in a scriptural debate. This Fakir later returned, repented, and acknowledged Sai's greatness. Throughout this, Sai Baba maintained a humble attitude, considering Devidas the Guru and himself the disciple. As narrated by the great devotee Mahalsapati and recorded in Chapter 5, Baba's profound lesson was "His Guruship to him, and my discipleship to me," demonstrating the importance of setting aside pride to achieve spiritual goals.