Be happy like a pig in shit!

A few days back I was reading an article whose title was'Be happy like a pig in shit!' I was so amazed at the title that I decided I'd read the whole article! The writer had written it in such an influential way!
          Everyone has their ups and downs! But why are we happy only during our ups!? Why do we start whining ang bragging as soon as we face some difficulty? Learn to be happy even when your time is not good! Because at the end of the day you are going to emerge as a stronger person having faced another difficulty! :D