happiness is a state of mind with no external cause, it's a thought and a feeling stemming from one's love, understanding and respect for their own precious existence, inner beauty and worth.

As for me, I picture happiness as a crystal clear spring or a river, that flows through me without a begining nor an end... life stretches itself on the banks of that river. No mundane stuff could either increase, or diminish my happiness, since I'm the master of my life and I'm in charge. I like pretty gals, fast cars, delicious meals, nice clothes and this kind of things the planet can offer; I do not like poverty, pain, tears, sadness and this kind of things the planet can offer. Here's the world: it's pleasurable or painful, it's sunny or cloudy, it's happy or not. And here's me: always feeling the pleasure of existence, always sunny, for always happy. Right, I'm in a good mood because I'm happy, not vice versa.

Happiness is a brief period of pleasure and joy followed by greater misery and pain ahead...it is a sick vicious cycle until we die then we may find absolute happiness or absolute misery.
The same logic applies to luck.

1) a word people like to describe poetically and metaphorically on urbandictionary.com

2)the only thing the poor have that the rich dont

When you feel satisfaction,pleasure,or basically anything that gives you a lot of dopamine,that feeling is happiness.

Nonexistent, I’m depressed everyone.

happiness | it isnt a definable in its essense it is a feeling you cant make you can only experience it is a description of pure, joy, thrill, friendship, hope and social warmth it just a word flung around the place like a bendulum but only if you knew how it is a mircale of emotion to feel joyhappiness and life