How does the practice of studying a Sadguru's biography fit into the larger tradition of scriptural study, and what constitutes such a biography?

As detailed in Chapter 0, a Guru's biography is a reliable book that describes the Guru's incarnation, life story, wonderful plays (Leelas), miracles, and other significant works. The practice of studying this biography through Parayans and Saptahs is presented as part of a very ancient tradition dating back to the Vedic era, which also includes the study of great works like the Vedas, Ramayana, and Shri Dnyaneshwari. While some of these are purely knowledge texts, studying a Guru's biography is a unique and powerful form of Guru service. It is the practical application of the principle that serving the saints is the doorway to knowledge, allowing devotees to immerse themselves in the life and teachings of their Sadguru for either worldly benefit or ultimate liberation.