What does Chapter 19 identify as the ultimate goal of human birth, and what path does it suggest for achieving it?

According to the teachings in Chapter 19, the ultimate goal and duty of human birth is the fulfillment of the soul. This is defined as achieving eternity, fearlessness, liberation, independence, and the attainment of the Supreme Self. The path to this goal is through knowledge, as the chapter explicitly states there is no liberation without knowledge. Furthermore, this essential knowledge cannot be attained without detachment. The first step toward detachment is for the mind to perceive the world as transient, which creates the spark needed to pursue this ultimate spiritual objective.