Satisfaction, happiness and pleasure are felt as rewarding because nature administers so. They are perceived as precious and are normally pursued. States of happiness are emotional attractors and motivators of behaviour. Like any other natural process happiness is a cyclic process. Normally intense pleasure experiences do not last long therefore satisfaction is an unstable temporary stage that is usually followed by a period of dissatisfaction. And there is nothing wrong in dissatisfaction as long as it is a phase of the happiness cycle.