When a man has a strange state , others try to help him forget this . When sadness is what prevails , we try to solve this problem through various jokes or actions which are designed to change the atmosphere of a cold in one more open and friendly . The jokes are those that entertains everyone, and it is impossible not react to one . For the moment, it contains a certain state of happiness, if the joke works. Joy must be feeling prevailing in a person’s life , because only with its help we can live easier and our morale is high.