The text mentions both bondage and liberation. What is the advanced spiritual instruction given to transcend these states?

Chapter 17 offers a profound insight into the dualistic nature of bondage and liberation, stating, "Where there is liberation, there is bondage; where there is bondage, there is liberation." Instead of striving for one over the other, the text advises the seeker to transcend both of these states entirely and remain in a pure, self-controlled state. This is referred to as the "knowledge of diligence." As per the guidance in chapter 17, this involves acquiring special knowledge (Vijnana) and discarding the ignorance associated with happiness and sorrow, realizing that the ultimate knowledge of Brahman is already right near you.