How does Chapter 5 characterize a truly wise person and their relationship with karma and duality?

Chapter 5 provides deep insights into the nature of a wise person. It states that for such an individual, cleverness imagined by one's own intellect is useless; instead, one must act without pride to achieve welfare. A wise person has "burned the pride of the body." According to the chapter, their bodily activities happen according to previous karma, but they are not the doer of karma and do not feel its burden. The text uses a powerful metaphor, stating that only if the sun could enter darkness would a wise man experience the sense of duality. For a wise person whose own form is the entire universe, they reside in a state of non-duality, a key philosophical point made in Chapter 5.