Happiness is contagious. There are always those people whose
  happiness is very very specific: They must have this and they
  must have they otherwise they are not happy. and that's not
  really happiness in their cases - its more of a "fix". But If
  you can find happiness in the tiniest things, the crack is open
  inside of you to allow the Wedge of Happiness to open the crack
  up further and further, to let more and more happiness in, until
  you can find happiness in the tiniest of tasks. Those who
  whistle while they work, have found that simplest and most
  powerful of happiness. "