For a Christian marriage is not just a social institution, much less a mere remedy for human weakness. It is a real supernatural calling. A great sacrament, in Christ and in the Church, says St Paul. At the same time, it is a permanent contract between a man and a woman. Whether we like it or not, the sacrament of matrimony, instituted by Christ, cannot be dissolved. It is a permanent contract that sanctifies in cooperation with Jesus Christ. He fills the souls of husband and wife and invites them to follow him. He transforms their whole married life into an occasion for God's presence on earth.

Husband and wife are called to sanctify their married life and to sanctify themselves in it. It would be a serious mistake if they were to exclude family life from their spiritual development. The marriage union, the care and education of children, the effort to provide for the needs of the family as well as for its security and development, the relationships with other persons who make up the community, all these are among the ordinary human situations that christian couples are called upon to sanctify.

They will achieve this aim by exercising the virtues of faith and hope, facing serenely all the great and small problems which confront any family, and persevering in the love and enthusiasm with which they fulfil their duties. In this way they practice the virtue of charity in all things. They learn to smile and forget about themselves in order to pay attention to others. Husband and wife will listen to each other and to their children, showing them that they are really loved and understood. They will forget about the unimportant little frictions that selfishness could magnify out of proportion. They will do lovingly all the small acts of service that make up their daily life together.

The aim is this: to sanctify family life, while creating at the same time a true family atmosphere. Many christian virtues are necessary in order to sanctify each day of one's life. First, the theological virtues, and then all the others: prudence, loyalty, sincerity, humility, industriousness, cheerfulness… But when we talk about marriage and married life, we must begin by speaking clearly about the mutual love of husband and wife.