What are the dual benefits for an author who writes a detailed biography of their Guru?

Writing a detailed poetic Guru biography offers a dual benefit to the author. Firstly, the act of writing itself is considered a form of Guru service. Secondly, and concurrently, when other devotees study the work and perform Parayans, the writer gains additional merit. As Chapter 0 explains, this is seen as serving God in humanity (Jan-Janardan) and performing a public service. This process allows not only the writer but also the readers to achieve the purpose of their lives, as the Sadguru accepts this collective service.