What is called happiness is only svarūpa [the ‘own form’ or actual nature] of ātmā [self]; happiness and ātma-svarūpa [our own actual self] are not different. Ātma-sukha [the happiness of self] alone exists; that alone is real. Happiness is not obtained from any of the objects of the world. We think that happiness is obtained from them because of our lack of discrimination.
(From ‘Nāṉ Yār?’ [Who am I?], Par. 14)
-Translation
This is from Ramana maharishi
Everyone seeks happiness. But they seek happiness outside the body. Happiness from food. Money. Glory. Sex. Looking good. Praises.
Yet when body dies all is lost. However if you realize the source of happiness it becomes enduring
Bhavin