It is considered that the need for happiness and joy - one of basic at the person. However not all manage to approach this state, and at times people independently refuse the happiness.
Life on an automatic pilot
It is the simplest to miss own happiness when you do not know accurately what you want from life. Quite often the person lives with the childhood on a template, graduates from school to which he was sent by parents, then the university in which was simpler all to act, goes to work to the first place where it was accepted, then meets the man or the woman and marries, brings children. Life in that case can pass unconsciously, kind of on the automatic machine. Under the influence of some circumstances of people can think suddenly that it is boring for it to live and that he wanted several another. Someone will decide on changes, and someone will not have enough courage, uncertainty frightens.
Fears and complexes
In case the person initially knows what he wants and that it is necessary for him for happiness, sometimes stir complexes, fears and indecision. For example, the young man wants to become the artist or the designer, but under pressure of parents goes to study as the lawyer. Even if he will manage to make quite good career, he, most likely, will feel unsatisfied and to blame itself(himself) for the fact that did not manage to defend the desires. There is also it that the person dreams to realize himself in a profession where the oratorical skill is required, but on public for fear he cannot connect two words also. Then it can try to overcome fear, including by means of the psychologist. If it does not work well, then the dream remains unrealized.
Quite often people are stopped by public opinion and the existing stereotypes. For example, the person in 35 years understood that he wants to replace a profession and he even has a certain sum for secure to end courses or to begin the business. But acquaintances and relatives are about his ideas skeptic and say that already late and that most important stability. And the person is not able to afford to be internally independent and to do that he wants. It is difficult to be happy to the one who grew up in family with strict education and does not consider the desires noteworthy. He did not get used to reveal the requirements and to satisfy them. He always tries to do that, "what is necessary". Such person can be a workaholic and lose rest, and in family to try first of all for the husband or the wife and children, and to forget about itself. Such behavior results first of all from a low self-assessment, a lack of love for itself and feeling of unworthiness.
Private life
People are insufficiently happy and for the reason that cannot be near darlings. So, the man or the woman can love the person who is already married and has children. Not everyone will decide to destroy family. Or the man hesitates to make the woman the proposal, and then she marries another. Also lovers can disperse under pressure of parents and because belong to different population groups.