We try to fill ourselves, drenching those around us with our detestations hoping the happiness inside them will be forced to overflow, and maybe we can soak up what is left lying on the ground. But everything left has been tarnshed, and the shimmer that lit up what we originally wanted is no longer there.
Funny thing is, happiness in a lot of ways clashes with human nature. By design people are selfish. We know right and wrong, but we also know when something is an advantage to us or a disadvantage. It is our conscience that is left alone on the battle field trying mediate two clashing forces. The irony of this situation roots itself in the fact that this is a victorious less battle. It is impossible to separate ourselves from our personal desires in order to make an objective decision.
So how is it, that there are people who seem to be generally happy? I believe that these are the people who have let go. They have quit trying to find, force, and steal happiness. The world is a bad place and bad things will happen. You have to learn to accept without being overcome. To cry, knowing its ok to cry, but knowing that you will not cry forever. To recognize anger and its source without becoming consumed with revenge. To forgive when it is not deserved. To be happy for someone without envy. And when you really need a good does of happiness, I recommend randomly doing something nice for a stranger.