How can a devotee serve their Sadguru through literary works, and what are the benefits of this service?

According to the teachings in Chapter 0, a Sadguru accepts service from devotees through books in two primary ways. The first is when the Guru themselves authors a great work, but the second involves having their biographies written by devotees. A devotee can perform Guru service by authoring a detailed poetic biography. When other followers study this work and perform Parayans (devotional readings), the author gains the merit of serving God in humanity, referred to as Jan-Janardan. Simultaneously, the devotees who study the text are guided toward achieving the purpose of their lives, creating a cycle of mutual spiritual benefit.