How does the author establish the historical and traditional basis for writing and studying Guru biographies?

The author establishes the practice's legitimacy by highlighting its ancient origins and its presence within Indian tradition. As noted in chapter 0, the service of writing a Guru's biography is mentioned in the Narada Purana, confirming that the tradition is very ancient. The author then provides specific historical examples from Maharashtra, referencing the world-renowned poet Shri Mahipati Maharaj, who wrote saints' biographies in his works like Shri Bhaktalilamrut, and the famous poet Shri Dasganu Maharaj, who did similar work. This demonstrates a continuous tradition of composing these biographical texts.