According to Chapter 19, what is the ultimate goal of human birth and what is the path to achieve it?

Chapter 19 outlines that the fulfillment of the soul and the ultimate duty of human birth is to attain eternity, fearlessness, liberation, independence, and the Supreme Self. The chapter explicitly states that this liberation is not possible without knowledge. Furthermore, knowledge itself cannot be attained without detachment. This creates a clear causal chain: for liberation, one needs knowledge, and for knowledge, one needs detachment. The process begins when the mind starts to perceive the world as transient, which sparks the necessary idea of detachment, setting one on the path to ultimate freedom.