Do what you love,
and love what you do...
Could this be the simplest formula all round satisfaction, happiness and success?
If we find our passion and pursue it relentlessly, after we give it our best, when we achieve the final result, we cannot help but be satisfied! And happy that we gave it our all and our everything, irrespective of the outcome. And if we are successful, that is such a special bonus.
So I say, do what you love, and love what you do!