A good mood is an indispensible thing in our lives.Without it, we will lost impetus to pursue everything in life.We evetually perish without exception provided always suffering from pressure and pain. The despression patients are the best example.The grief and misery destorys their mind and willpower,demolishes their yearning to keep alive,consequently and sadly , many of them will suicide to end their endless sorrow.Seems without a good mood,life also lose its splender and lustre. However,if you keep a good mood,you will be optimistic and energetic to head-on every new day and uncountable troubles.A good mood is a dose of the best medicine to stay healthy for free yourself from great pressure. It is like an intimate friend to support you all the time,and I always believe that all the pain exists for foiling a good mood.Therefore,we should not make our suffering become senseless but pave the way to happiness.