It seems to me that the pursuit of happiness is serious business. Happiness is what is striven for after all of one's basic needs have been met. Happiness is where art, philosophy, history, literature, the sciences, and mathematics reside. Happiness is having contented, well-educated children. Happiness is being able to be with the ones you love.
Happiness is self-actualization and fulfillment.
So, therefore, achieving it can be a very tall order. As well it should be I suppose. For in my opinion, happiness is all that really matters. And by happiness I am not referring solely to feelings of pleasure. No, I can imagine circumstances where one might very well be happy, but not pleased.