MGs are a group of lay missionaries who seek to use creative and personal ways to help others (1) encounter Christ and recognize their dignity (c.f. Gaudium et Spes 22), and (2) learn how to live their faith and dignity fulfilling their supreme vocation.
MGs have encountered the person of Christ, and said yes to His call to live the Gospel to the full, to go forth to bring the Good News to all nations (Mt 28:19). We seek to heal the broken hearted, proclaim liberty to the captives and set prisoners free (Is 61:1, Lk 4:18), not so much physically as interiorly. It is not the material needs of people that we focus on, but rather the interior poverty of man.
The mission field for the MGs is the mission field of the heart. ‘The Church’s fundamental function in every age and particularly in ours is to direct man’s gaze, to point the awareness and experience of the whole of humanity towards the mystery of God, to help all men to be familiar with the profundity of the Redemption taking place in Christ Jesus. At the same time man’s deepest sphere is involved-we mean the sphere of human hearts, consciences and events’ (RH 10). Saint John Paul II reminded us that it is only when man undergoes an inner transformation, redemption of the heart, that the source of the world’s problems will be addressed. Without this, change will not be authentic or enduring.
This involves entering the lives and culture of those around us. We learn to present the Good News through our words and example. We provide the support, formation and experience of community necessary for each person to have a deeper understanding and appreciation of who God is, who man is and is called to be. We learn how we can live and enculturate the Gospel in our daily lives, responding to the privileged call to union with God that we have each received.
This mission is a response to problems today such as the crisis in faith and ideology, humanity’s blindness to the dignity of every human person, the resistance in our hearts to actively receive the saving power of Christ and the lack of community in the world. MGs strive to help others experience God in their lives and remove the obstacles in their heart to an ever deeper communion with Him and others.
“Join in the great mission of revealing Christ to the world, helping each person to find himself in Christ, and helping the contemporary generations of our brothers and sisters, the peoples, nations, States, mankind, developing countries of opulence—in short, helping everyone to get to know ‘the unsearchable riches of Christ’ (Eph 3:8)” JPII, Redemptor Hominis, para. 32
 “For if I preach the Gospel, that gives me no ground for boasting. For necessity is laid upon me. Woe to me if I do not preach the Gospel!” (1 Cor 9: 16). In the name of the whole Church, I sense an urgent duty to repeat this cry of St. Paul. From the beginning of my Pontificate I have chosen to travel to the ends of the earth in order to show this missionary concern. My direct contact with peoples who do not know Christ has convinced me even more of the urgency of missionary activity.’ Redemptoris Missio (7 Dec 1990) 1.
 “It is not right to give an incomplete picture of missionary activity, as if it consisted principally in helping the poor, contributing to the liberation of the oppressed, promoting development or defending human rights. The missionary Church is certainly involved on these fronts but her primary task lies elsewhere: the poor are hungry for God, not just for bread and freedom. Missionary activity must first of all bear witness to and proclaim salvation in Christ, and establish local churches which then become means of liberation in every sense” (RM 83)
 In a letter to Fr Henri de Lubac (cited in his book ‘At the service of the Church’ p 171-2) he said, ’It seems to me that the debate today is being played out on… [the level of the person]. The evil of our times consists in the first place in a kind of degradation, indeed in a pulverization, of the fundamental uniqueness of each human person… to this disintegration planned at time by atheistic ideologies, we must propose, rather than sterile polemics, a kind of ‘recapitulation’ of the inviolable mystery of the person.’