According to Chapter 19, what is the ultimate purpose of human life, and what steps are necessary to achieve it?

The ultimate purpose and duty of human birth, as outlined in Chapter 19, is the attainment of the Supreme Self. This attainment brings about a state of eternity, fearlessness, liberation, and independence. The chapter clearly lays out a sequential path to this goal, stating that there can be no liberation without knowledge. Furthermore, this essential knowledge cannot be attained without detachment from the world. The text concludes that the spark of detachment itself can only ignite when the mind fully perceives and accepts the transient, impermanent nature of the world.