Buddhism teaches the freedom from cravings is true happiness.
We are influenced by cravings. Cravings toward pleasure, cravings to be away from pain. These cravings are what breed discontent. Discontent is unhappiness. Thereby, real happiness has nothing to do with having a lot of pleasure or being free from displeasure, but instead being free from the craving for more pleasure and less displeasure. The state of being free from cravings and the desire to control reality is called “Nirvana”, and something that Buddha achieved… and possibly others.
This is a core feature of Buddhism, which is a religion heavily based around happiness.