(26) On the one hand, the dignity of human persons requires their origin to be from parents joined in marriage, from the necessary intimate, integral, mutual and permanent union that comes from being spouses.  This then is a good for the children.  This is the only origin that adequately safeguards the principle of the children’s identity not only from the genetic or biological viewpoint, but also from the biographical and historical perspective.[54][54]  On the other hand, marriage itself constitutes the most human and humanizing context for welcoming children, the context which most readily provides emotional security and guarantees greater unity and continuity in the process of social integration and education. “The union between a mother and a conceived child and the irreplaceable function of the father require the child to be welcomed into a family which will guarantee it if possible the presence of both parents.  The specific contribution offered by them to the family, and through it, to the society, is worthy of great consideration”.[55][55]  Furthermore, the continued sequence between conjugality, motherhood/fatherhood and kinship (filiation, fraternity, etc.) avoids many serious problems for society which come up precisely when the chain of the different elements is broken in such a way that each of them acts independently from the others.[56][56]