When a child is born, he is completely stranger to a new world. He is the person who enters the world, which is characterized by the presence of people who are expecting him to cry at the first moment of his life. Therefore, how could he survive in a world that expects him to cry? For he does not possess a sense to recognize the love of such people wants him to cry, he is merely an innocent child who is stranger to the new world. Therefore, to get him in the line and make him familiar and comfortable with the present world, the parents shall understand their responsibility to do.