According to Chapter 8, what defines a 'proficient' human, and what is the path to achieving the 'true success of birth'?

Chapter 8 teaches that the "true success of birth" is the realization of the Eternal. A person who achieves this is described as free, fearless, and independent. The path to this realization begins with deep self-inquiry. The text suggests that a 'proficient' person is one who understands the "seed" of their existence by asking fundamental questions: "Where have we come from? Who are we? What is the reason for human birth?" Without knowing the answers to these, all other efforts are considered mere exhaustion. The ultimate goal, as stated in Chapter 8, is the attainment of the Supreme Self (Paramatman), which distinguishes a meaningful human life from mere survival.