According to the teachings in Chapter 8, what is the true purpose and duty of human birth?

Chapter 8 of the Sai Satcharitra presents a profound philosophical argument about the purpose of human life. It argues that a life spent merely on survival—eating, sleeping, procreating, and avoiding fear—is no different from that of an animal and is therefore useless. The text states unequivocally that the true duty and ultimate success of human birth is the attainment of the Supreme Self (Paramatman) and the realization of the Eternal. It poses the fundamental questions: "Where have we come from? Who are we? What is the reason for human birth?" According to this chapter, one who knows the answers to these questions is proficient, while all other efforts are just exhaustion. This spiritual quest is what makes a human being truly free, fearless, and independent.