How can devotees serve Sai Baba and cultivate a community around his teachings using written materials?

According to the preface in Chapter 0, a primary way devotees can serve a Sadguru and build a community is through books. The Sadguru accepts service from followers by having his biographies written and also by accepting the service of study and Parayans (devotional readings) from both the author and the congregation of devotees. When devotees collectively study a detailed biography like the Shri Sai Satcharita, they not only perform service but also help each other achieve the purpose of their lives, thereby strengthening their communal bond and fostering a shared spiritual practice.