First of all, many people believe that happiness needs many factors and personal experiences to define. For instance, the World Mental Organisation illustrated the data that though there are up-to-date measurement methods to define citizen joy, scientists cannot completely understand the norm of happiness. In fact, there are more than 20 elements involved in personal pleasure including, wealth, relationships, self-esteem and basic needs. From this research, there are varieties of factors and personal views to measure happiness in a person. As a result, this makes delight hard to understand.