What was Sai Baba's core advice to his followers on how to live a happy life?

According to Chapter 17, Sai Baba's constant advice to his devotees was to not worry in the least and to always be full of joy, even until death. This principle aligns with the Taittiriya Shruti that "Brahman is bliss." The chapter further elaborates that one should follow the Sadguru's word with faith, always listen to good scriptures, and maintain a constant, alert focus on the Self. Baba himself set the example by always doing good for others. By following this conduct, individuals can find their own salvation and, in turn, help countless others find their path.