Chapter 1 | Aspiration : Desire is a kind of demand and an expectation of fulfillment. Your inner mind keeps going for aspiration and behavior naturally harmonize to achieve the mission. That's to say; the desire is the foundation of power source and the trigger of activities. The power source will be disappeared without any aspiration.
Chapter 2 | Asking further : People would always keep and possess the satisfaction after obtaining the content. The satisfaction can only hold out awhile, it will deteriorate by frequency of experience, and you won't feel the equal delight no more longer. It will be in need of giving much better things if people would like to acquire the same scarification. In the other word, more desire becomes larger, more refined stuff can be only to fill.
Chapter 3 | Disappointment : People will frustrate if the satisfaction of desire vanish gradually. Once the disappointment occurs, the negative emotion will come in succession such as depression, frustration, anger, jealousness ... etc.