The preface mentions service through books. How does this concept relate to creating a community of Sai devotees?

According to Chapter 0, a Sadguru takes two types of service from devotees through books. One way is by having biographies written, which are then studied by the congregation of devotees. This act of study and performing Parayans is a form of service. By engaging with a detailed work like the Shri Sai Satcharita, both the writer and the readers participate in this service. The writer gains merit for serving God in humanity (Jan-Janardan), and the devotees who study the work also achieve their life's purpose. This shared spiritual practice of studying the Guru's life story is a powerful method for building a strong and connected community.