According to Chapter 8, what are the key philosophical questions a person must answer to make their birth successful, and what makes a human being 'proficient'?

In Chapter 8 of the Sai Satcharitra, the text elevates human existence by defining its true success through self-inquiry and realization. It posits that a human being is uniquely 'free, fearless, and independent,' and this status is meant for achieving the realization of the Eternal. To be considered 'proficient,' one must contemplate the 'seed' of existence by asking fundamental questions: "Where have we come from? Who are we? What is the reason for human birth?" According to the teachings in Chapter 8, anyone who knows the answers to these questions is proficient; without this knowledge, all other life activities are described as mere exhaustion. This underscores the chapter's central theme that spiritual inquiry is the primary purpose of human life.