How can we foster a community centered on Sai Baba's teachings, according to the provided text?

The provided text suggests that a powerful way to develop a community around a Sadguru like Sai Baba is through the creation and study of his biography. The Sadguru accepts service from devotees through books in two ways: either by creating great works himself or by having his biographies written by devotees. These biographies, when studied and used for Parayans (devotional readings) or Saptahs (week-long readings), serve a dual purpose. As mentioned in Chapter 0, the writer performs Guru service, and when other devotees also study the work, the writer gains merit for serving God in humanity. This collective study helps devotees achieve their life's purpose and builds a shared spiritual practice. The completion of Shri Sai Satcharita, written by Annasaheb Dabholkar, is presented as a key example of such a work that facilitates this community-building activity.