We can choose to live in a way that puts us back in touch with what really matters.We can help create a world where human dignity is respected and people in developing countries have the chance to live their lives to the full. God calls us to live simply, sustainably and in solidarity with people who are poor.
Deus Caritas Est 28:
The Church is ... alive with the love enkindled by the Spirit of Christ. This love does not simply offer people material help, but refreshment and care for their souls, something which often is even more necessary than material support. In the end, the claim that just social structures would make works of charity superfluous masks a materialist conception of man: the mistaken notion that man can live “by bread alone” (Mt4:4; cf. Dt 8:3)—a conviction that demeans man and ultimately disregards all that is specifically human.
Spe Salvi 35:
... our daily efforts in pursuing our own lives and in working for the world's future either tire us or turn into fanaticism, unless we are enlightened by the radiance of the great hope that cannot be destroyed even by small-scale failures or by a breakdown in matters of historic importance. If we cannot hope for more than is effectively attainable at any given time, or more than is promised by political or economic authorities, our lives will soon be without hope. It is important to know that I can always continue to hope, even if in my own life, or the historical period in which I am living, there seems to be nothing left to hope for. Only the great certitude of hope that my own life and history in general, despite all failures, are held firm by the indestructible power of Love, and that this gives them their meaning and importance, only this kind of hope can then give the courage to act and to persevere. Certainly we cannot “build” the Kingdom of God by our own efforts—what we build will always be the kingdom of man with all the limitations proper to our human nature. The Kingdom of God is a gift, and precisely because of this, it is great and beautiful, and constitutes the response to our hope. And we cannot—to use the classical expression—”merit” Heaven through our works. Heaven is always more than we could merit, just as being loved is never something “merited”, but always a gift. However, even when we are fully aware that Heaven far exceeds what we can merit, it will always be true that our behaviour is not indifferent before God and therefore is not indifferent for the unfolding of history. We can open ourselves and the world and allow God to enter: we can open ourselves to truth, to love, to what is good. This is what the saints did, those who, as “God's fellow workers”, contributed to the world's salvation (cf. 1 Cor 3:9; 1 Th 3:2).