How can devotees of Sai Baba build a community and serve the Guru through books?

According to the preface in Chapter 0, a Sadguru accepts service from devotees through books in two primary ways. One method is by having their biographies written, and the second is by accepting service from the writer and the congregation through the study and performance of Parayans of that work. Therefore, by collectively studying and performing Parayans of a detailed biography like the Shri Sai Satcharita, devotees can perform Guru service together. This practice not only benefits the individual but also allows the writer to gain the merit of public service, fostering a community where devotees can collectively achieve the purpose of their lives.