We only want laughter, but we lose our strength if we never shed tears, Like we always say if there is something negative then surely there is something positive also but how many of them really believe this. If they would believe than they have to believe if there is some happiness then ofcourse there will be some sorrow. God never hurts needlessly, So, whenever we are troubled and when everything goes wrong It just God is working on us to make our spirit strong. So just do believe in god, His love is purest and he can never hurt us needlessly.