Happiness aligns with Innocence but slowly dies with growth.
as we grow to adulthood we understand Joy and rarely witness happiness in ourselves again. But Joy.. joy is wise and true. familiar with happiness but not quite the full thing. Joy is the memory of what once was and some-what still is. Happiness is for the young and foolish and innocent.
To be content with ones self is to understand ones capabilities. To understand self control and emotional strength. But to take pride in happiness, you grow the reputation of the blind and foolish. You miss your mistakes and you soon find yourself alone. And then... loneliness. Sadness drowns you and something dark emerges. Something negative... something.. Broken.. and/or Evil.