Joy
One time my pastor told me, “Happiness comes from the earth, but Joy comes from God,” so I guess if I could describe Happiness in one word, it would be Joy. The Joy of knowing everything I’m doing comes from a place of faith. And I know that sounds like an overly religious answer, but at the same time, if I place my identity in my faith, why shouldn’t that be the source of my ultimate happiness. I find my fulfillment in the Joy of knowing that I’m loved by God and from that springs everything else in my life.
Happiness is circumstantial, but Joy is permanent.