The fulfillment of a wish is a brief happiness, a happy ending, when you die after it or get started, with something new a next phase or a next step
For a lasting Happy End, the hereafter has been invented, and the consolation one derives from descendants with the thought that later, some day everything will be fine
Till you're going to understand that life seems pointless because everything goes on without general happiness ahead
but that we can also do without the high of an illusion and go along with the stream and its dynamics that never close anything