According to the text, what are the spiritual benefits for both the author and the readers of a detailed Guru biography?

As detailed in Chapter 0, writing a detailed poetic Guru biography is in itself a form of Guru service for the author. This act of service extends further when other devotees engage with the work. The text states that when others study the book and perform Parayans, the writer gains the additional merit of serving God in humanity (Jan-Janardan) and performing public service. Simultaneously, the devotees who study the biography are also able to achieve the purpose of their lives through this devotional practice, creating a mutual spiritual benefit for the entire community.