Can you explain the process of transcending duality and attaining the knowledge of Brahman as described in Chapter 17?

Chapter 17 explains that true liberation lies in transcending the very concepts of bondage and freedom to remain in a pure, self-controlled state. This is achieved through what is called "the knowledge of diligence." The first step is to discard all ignorance concerning happiness and sorrow and acquire special knowledge (Vijnana). This involves understanding that your true self is Brahman, but you have become deluded by the ego of "me and you." By ceasing to wander with a beggar's attitude despite your inherent spiritual wealth and instead focusing on the Self with faith in the Sadguru's word, you can realize the knowledge of Brahman which is always near.