Wherever there is temporary happiness, distress must follow. Real happiness is ananda; it is transcendental to material happiness and continues forever. However, we have no experience of that happiness because we mistake happiness in this world for the mitigation of our distress. We think we are happy when our senses or mind are temporarily satisfied with some pleasure, but it is only a temporary mitigation of our distress. Real happiness is that which Krishna directly gives to His devotees. It is the happiness derived from pleasing the Lord. When the Lord is pleased by our activities, that is the greatest source of our happiness. That happiness is eternal and will never be taken away.
(Caitanya Caritamrita Lectures Book, Adi Lila 1.54 Minsk—1998, Page 25,26)