How does the act of writing and publishing a Guru's biography benefit both the author and the wider community of devotees?

According to the principles outlined in Chapter 0, writing a detailed poetic Guru biography offers a twofold benefit. Firstly, the writer is performing a high form of Guru service. Secondly, when other devotees study and perform Parayans of this biography, the writer gains the additional merit of serving God in humanity (Jan-Janardan) and performing a great public service. This act not only helps the writer but also enables other devotees to achieve the purpose of their own lives through the study of the Sadguru's life and teachings.