What is the philosophical perspective on the purpose of human life as detailed in Chapter 8 of the Sai Satcharitra?

Chapter 8 of the Sai Satcharitra presents a profound philosophical argument about the true purpose of human existence. It posits that a life consumed by mundane activities like eating, sleeping, and procreation is essentially wasted and no different from the life of animals such as dogs or pigs. The text explicitly asks if being born, growing strong, and living a long time is the sole purpose of life. According to the teachings in this chapter, the real duty and ultimate success of a human birth lie in the 'attainment of the Supreme Self (Paramatman).' It emphasizes that a human is uniquely free and independent, and therefore, the realization of the Eternal is the only true achievement of this life, without which all other efforts are considered mere exhaustion.