How does Chapter 5 describe the state of a "wise man" and the concept of non-duality?

Chapter 5 provides a profound description of a "wise man" as someone who exists in a state of non-duality. The text explains that the bodily activities of such a person happen according to their previous karma, but they are not the doer of these actions and do not feel the burden of destiny. The concept of non-duality is illustrated with a powerful metaphor: "Only if the sun were to enter darkness would a wise man have the sense of duality." This is because, for a truly wise individual, their "own form is the entire universe," and thus they naturally reside in a state of non-duality, free from the separation and pride that afflict others, as mentioned throughout Chapter 5.