The pursuit of happiness is a universal human endeavor, yet its definition is deeply personal. Modern research suggests that lasting happiness is less dependent on material wealth and more on factors like strong social relationships, a sense of purpose, gratitude, and engagement in meaningful activities. The hedonic treadmill theory posits that people quickly return to a stable level of happiness after positive or negative events. This implies that sustainable well-being comes from cultivating inner resources and connections, rather than from external achievements or acquisitions.