How can devotees of Sai Baba engage in service and build a community around his life?

According to the preface in Chapter 0, one significant way a Sadguru accepts service from devotees is through books. A community can be built by having devotees write detailed biographies, which are then studied by a congregation. This act of writing is considered Guru service, and when other devotees study and perform Parayans (devotional readings) of the work, the writer gains merit for serving God in humanity. This collective study helps other devotees achieve the purpose of their lives, fostering a shared spiritual practice.