How does happiness come from within?

"In Hinduism, ananda is one of the three essential attributes of Brahman, the ultimate reality, along with sat (existence) and chith (consciousness). These three aspects form the core of Brahman's nature and are often expressed as "Sat-Chit-Ananda." Ananda is the experience of unbounded, eternal, and unalloyed happiness," says Dr. Hansaji Yogendra, Director- The Yoga Institute.