'I Want To Die Remembering My Pranks' Because 'Happiness Equals Smiles Minus Frowns'
What is happiness? There is no clear definition of that, because happiness is a complex concept, and that it's subjective.
What this means, happiness is a personal experience. The the feeling can differ from one person to another, and that what makes one person happy might not make another happy.
While the feeling cannot be defined as a constant euphoria, what's certain is that, happiness is a combination of both feeling good and life satisfaction.