Happiness for me is a constant state of being that is removed from, but not isolated from your emotions. Thus, happiness should permeate life, and one should have that sense even when having a bad day. That said, it also explains my belief that something or even someone else will never make you happy - you need to be that on your own already. We can share our happiness, and other people can give us happy moments, but they cannot make us happy people.
However, we do get momentary happiness as well. It represents moments of pure elation that is engulfed in emotion. They are, if you will, bubbles of pure gold joy that pours from the centre of one's heart without warning and without planning. They can happen anytime, anywhere, and when they do, they give a natural high that can leave you smiling for a long time. They can be given and shared and remembered for a long time.
6 months ago