What was Baba's core advice about happiness and how does it connect to the concept of Brahman?

According to Chapter 17, Baba's constant advice to his devotees was to "always be full of joy; do not worry until death." This teaching is presented as a practical application of a profound scriptural truth found in the Taittiriya Shruti, which states, "Brahman is bliss." In essence, Baba was translating this high philosophical principle into simple, actionable guidance for his followers. The text emphasizes that by embracing this joyful state, devotees could successfully navigate the "ocean of existence" and find refuge in Sai, aligning their lives with the blissful nature of the ultimate reality, Brahman.