What was Sai Baba's constant advice regarding worry and joy, and how does it relate to Brahman?

According to Chapter 17, Sai Baba's constant advice to his devotees was, "Do not worry in the least; always be full of joy; do not worry until death." This teaching is presented as a practical translation of the profound Taittiriya Shruti principle, "Brahman is bliss." Baba's guidance aimed to help followers experience this state of blissful existence. The chapter suggests that by contemplating and meditating on such teachings, one can find refuge in Sai and navigate the ocean of existence with a joyful heart, as this was the principle Baba himself followed and demonstrated.