"What I'm about to tell you is so important, please write it down: Seek insight, not happiness."Chasing after happiness is like playing football with movable goal posts. Once you think you are there, you are not. You will have to keep on playing the game, hoping to achieve another first down, over and over.
-- Vernon Howard
You realize this through insight. And through insight comes acceptance and gratitude, which leads to peace, which brings joy and bliss.
Happiness? Some would say so, but to me that is just part of the happiness/sadness duality which is ultimately what you wish to transcend. Once again, seek insight.