32. A first essential setting for learning hope is prayer. When no one listens to me any more, God still listens to me. When I can no longer talk to anyone or call upon anyone, I can always talk to God. When there is no longer anyone to help me deal with a need or expectation that goes beyond the human capacity for hope, he can help me. When I have been plunged into complete solitude ...; if I pray I am never totally alone. The late Cardinal Nguyen Van Thuan, a prisoner for thirteen years, nine of them spent in solitary confinement, has left us a precious little book: Prayers of Hope. During thirteen years in jail, in a situation of seemingly utter hopelessness, the fact that he could listen and speak to God became for him an increasing power of hope, which enabled him, after his release, to become for people all over the world a witness to hope—to that great hope which does not wane even in the nights of solitude.
33. Saint Augustine, in a homily on the First Letter of John, describes very beautifully the intimate relationship between prayer and hope. He defines prayer as an exercise of desire. Man was created for greatness—for God himself; he was created to be filled by God. But his heart is too small for the greatness to which it is destined. It must be stretched. “By delaying [his gift], God strengthens our desire; through desire he enlarges our soul and by expanding it he increases its capacity [for receiving him]”. Augustine refers to Saint Paul, who speaks of himself as straining forward to the things that are to come (cf. Phil 3:13). He then uses a very beautiful image to describe this process of enlargement and preparation of the human heart. “Suppose that God wishes to fill you with honey [a symbol of God's tenderness and goodness]; but if you are full of vinegar, where will you put the honey?” The vessel, that is your heart, must first be enlarged and then cleansed, freed from the vinegar and its taste. This requires hard work and is painful, but in this way alone do we become suited to that for which we are destined. Even if Augustine speaks directly only of our capacity for God, it is nevertheless clear that through this effort by which we are freed from vinegar and the taste of vinegar, not only are we made free for God, but we also become open to others. It is only by becoming children of God, that we can be with our common Father. To pray is not to step outside history and withdraw to our own private corner of happiness. When we pray properly we undergo a process of inner purification which opens us up to God and thus to our fellow human beings as well. In prayer we must learn what we can truly ask of God—what is worthy of God. We must learn that we cannot pray against others. We must learn that we cannot ask for the superficial and comfortable things that we desire at this moment—that meagre, misplaced hope that leads us away from God. We must learn to purify our desires and our hopes. We must free ourselves from the hidden lies with which we deceive ourselves. God sees through them, and when we come before God, we too are forced to recognize them. “But who can discern his errors? Clear me from hidden faults” prays the Psalmist (Ps 19:12 [18:13]). Failure to recognize my guilt, the illusion of my innocence, does not justify me and does not save me, because I am culpable for the numbness of my conscience and my incapacity to recognize the evil in me for what it is. If God does not exist, perhaps I have to seek refuge in these lies, because there is no one who can forgive me; no one who is the true criterion. Yet my encounter with God awakens my conscience in such a way that it no longer aims at self-justification, and is no longer a mere reflection of me and those of my contemporaries who shape my thinking, but it becomes a capacity for listening to the Good itself.
34. For prayer to develop this power of purification, it must on the one hand be something very personal, an encounter between my intimate self and God, the living God. On the other hand it must be constantly guided and enlightened by the great prayers of the Church and of the saints, by liturgical prayer, in which the Lord teaches us again and again how to pray properly. Cardinal Nguyen Van Thuan, in his book of spiritual exercises, tells us that during his life there were long periods when he was unable to pray and that he would hold fast to the texts of the Church's prayer: the Our Father, the Hail Mary and the prayers of the liturgy. Praying must always involve this intermingling of public and personal prayer. This is how we can speak to God and how God speaks to us. In this way we undergo those purifications by which we become open to God and are prepared for the service of our fellow human beings. We become capable of the great hope, and thus we become ministers of hope for others. Hope in a Christian sense is always hope for others as well. It is an active hope, in which we struggle to prevent things moving towards the “perverse end”. It is an active hope also in the sense that we keep the world open to God. Only in this way does it continue to be a truly human hope.