What are some established methods for devotees to engage with and spread the teachings of a Sadguru like Sai Baba?

The source material suggests a primary way a Sadguru accepts service is through books. As detailed in Chapter 0, this can involve studying great works or, more relevantly, having biographies written by devotees. These biographies, like the Shri Sai Satcharita, become powerful tools for community engagement through dedicated study, Parayans (devotional readings), and Saptahs (week-long readings). This process allows the writer to perform Guru service, and as other devotees study the work, they also achieve the purpose of their lives and contribute to a wider community of faith and public service.