Happiness is a light that cannot and shouldn't be hidden, a glow that shines brighter than the stars in the sky which is the source of solution to so many problems. Therefore having a balance and fulfilled state of mind coupled with smiles which is the expression of what is in the mind, its a great ingredients that most great people never move around without. There is a lovely aroma in it and its inevitable and increases ones chance of being great.
Thus, great people are not really satisfied with what they have achieved neither do they worry about things that didn't work well, they believe that instead of worrying, its better to look for the solution because worries increases one's problem instead of giving it solution.
Amazing post