According to Chapter 5, what lesson did Sai Baba teach through his own behavior regarding the Guru-disciple relationship, particularly in the context of Devidas?

Chapter 5 presents a profound lesson on humility and the Guru-disciple dynamic, exemplified by Sai Baba's own conduct. Even though Baba's spiritual stature was supreme, he maintained the feeling that "he [Devidas] is the Guru and I am the disciple." The text emphasizes Baba's profound play, where he treated Devidas with respect, teaching the lesson: "His Guruship to him, and my discipleship to me." As explained in Chapter 5, this behavior illustrates that to achieve the supreme goal, one must burn the pride of the body and be willing to become a disciple. Sainath himself practiced this, demonstrating that making a firm resolution to overcome pride is the way to climb the "fort of selflessness."