According to Chapter 5, what is the importance of selflessness and overcoming pride for spiritual progress?

Chapter 5 strongly emphasizes that personal cleverness and pride are significant obstacles to spiritual welfare. The text clearly states that one "who wants to achieve his own welfare in his heart should act without pride." It further elaborates that a person has made their life meaningful only when they have "burned the pride of the body." According to the teachings in Chapter 5, only after overcoming this pride can one truly become a disciple to achieve the supreme goal. This concept is exemplified by the story of the Guru whose delusion had to be dispelled. The chapter concludes this point by noting that a person who "makes a firm resolution in his mind will climb the fort of selflessness."