By creating the human couple and blessing their union, the first divine intervention occurred, with significance for all mankind. Marital union is one of the ways in which a person can live the divine gift of love. Up until The Second Vatican Council there were two purposes of marriage – procreation and upbringing, as well as mutual aid and a cure for lust, which the Council had redefined, in a way that marital love was given its legitimacy and became the foundation of marriage. The conjugal act becomes an expression of the union of love and openness to procreation. In this way, the Council had returned to the biblical basis that, in a simple way, speak of the mystical behind the intimate union between a man and a woman. The union between a man and a woman corresponds with their natural vocation, taking into account the dimensions of sexuality and corporeality, their relation to each other, the dynamics of love, the social characteristics of love and, finally, the psychology of friendship. Jesus Christ poured His blessing on the true marital love by which it became divine and was created as an image of the union between Christ and the Church. This paper seeks to approximate the mystery of marital love by highlighting its core elements of holiness, sacramentality and trinity. Every human needs to act responsibly when it comes to his sexuality, and feel blessed in the relation of mutual giving and receiving in order to remain faithful in love. We are called to love for love is the fundamental principle of life.