It is easy to confuse happiness with pleasure. But the two are not one. Pleasure is intense and as is the nature of all intense emotions, it is transient. Happiness is more enduring though mellow. Pleasure can result from any number of happy experiences. For instance, you get pleasure from eating your favorite chocolate or reading a fantastic book. Take away the experience and pleasure ends. On the other hand, happiness is the aggregate of a number of experiences. Therefore, it cannot be dashed in an instant.