Based on Chapter 5, what philosophical insights are offered regarding the nature of a wise person and the path to selflessness?

Chapter 5 provides deep philosophical insights into the state of a truly wise person. It posits that achieving one's own welfare requires acting without pride and burning the "pride of the body." A wise person's actions are guided by previous karma, but they are not the doer of the karma, nor are they burdened by it. The ultimate state is one of non-duality, where the individual sees their own form as the entire universe, just as the sun cannot enter darkness. The chapter suggests that one who makes a firm resolution in their mind to be selfless can "climb the fort of selflessness" and become a disciple to anyone to achieve the supreme goal.