What is the primary duty of human birth as defined in Chapter 8, and why is it considered urgent?

According to the philosophy laid out in Chapter 8 of the Sai Satcharitra, the true and primary duty of human birth is the 'attainment of the Supreme Self (Paramatman).' The text dismisses a life focused only on physical sustenance and pleasure as a waste of the human form. The urgency of this duty is stressed by highlighting the transient nature of life. The chapter describes the body as momentary and perishable, 'as transient as the peepal leaf,' with death being an ever-present possibility. It warns that 'birth and death are always attached' and life can depart suddenly. This emphasis on the impermanence of the body and the inevitability of death serves as a call to action, urging individuals to pursue their spiritual realization without delay.