My definition of happiness is good vegetarian food, good work and sound sleep. Though I don't remember who had said it, I like to recall that freedom of every society varies proportionately with the volume of the laughter. It has a profound meaning in the sense that freedom to laugh is the most difficult freedom to secure.
Laughter is the index of the state of mind of an individual. Did you ever see a person suffering from a terminal disease roaring into laughter? Did you ever see a person lost in the burdens and complexities of life bursting out into laughter? We hear/read about suicides only in such cases.
The other day I read a news report that tiny Bhutan has a big happiness quotient; and it is the only country in the world that comes out with a regular happiness index every year. In India, we have the opposite: rate of suicides, crime and deaths etc.
One can't say happiness is all an individual's business. In this complex, interrelated and interdependent world, external factors play a decisive role in one's being cheerful or not. But that does not mean there is no controlling system within. There is, and an individual who understands the dynamics of societal functions also understands the ways to cope up with the thorny issues. He/she learns to remain floating/flying even in the worst of disasters.
One must keep in mind that the way out of a problematic situation is to tackle it head-on, and not run away from it. No wonder, those who laugh away their way to success are those who convert difficult situations into favourable ones. Or else, how come fortune favours the brave only.
But I must give a word of caution. One should not be ecstatic about happiness and pleasure. They are all momentary. As Rabindranath Tagore had said," Pleasure is like a dew drop; while it laughs, it dies."
So, the point to remember is to work hard and do a good job. Go to sleep and wake up to a brighter tomorrow. You will get plenty of chances to laugh!