What is the ultimate goal of human birth, and how is it achieved according to the teachings in Chapter 19?

According to the teachings presented in Chapter 19, the ultimate fulfillment and duty of human birth is the attainment of the Supreme Self, which brings eternity, fearlessness, liberation, and independence. The path to achieving this goal is clearly laid out. The chapter states that there can be no liberation without knowledge, and knowledge cannot be attained without detachment. This detachment, in turn, only arises when the mind truly perceives the world and its attachments as transient and impermanent. Therefore, the process involves recognizing the fleeting nature of worldly existence, cultivating detachment, gaining true knowledge, and finally achieving liberation.