(41) The very presence of Christian married couples in many milieus in society is a privileged way of showing contemporary people (whose subjectivity is destroyed to a good extent, who are exhausted in a vain search for “free” love, opposed to real conjugal love, through a multitude of fragmented experiences) that it is really possible for human beings to find themselves again and to help them to understand the reality of a fully realized subjectivity in marriage in Christ the Lord.  Only in this kind of “clash” with reality can the nostalgia emerge for a homeland of which every person has an indelible memory.  To the disillusioned men and women who ask themselves cynically, “Can anything good come from the human heart?”, it is necessary to be able to answer them: “Come and see our marriage, our family”.  This can be a decisive departure point, a real witness whereby the Christian community, with God’s grace, will manifest God’s mercy toward men.  It can be seen that the substantial influence exercised by faithful Christians in many milieus is very positive.  By reason of a conscious choice of faith and life, in the midst of their contemporaries, they appear to be the ferment in the mass, the light in the midst of the darkness.  Pastoral attention to their preparation for marriage and the family and follow-up in their married and family life is of fundamental importance for the life of the Church and the world.[97][97]