From his first encyclical, Deus caritas est, published on Christmas Day 2005:
Man is truly himself when his body and soul are intimately united; the challenge of eros can be said to be truly overcome when this unification is achieved. Should he aspire to be pure spirit and to reject the flesh as pertaining to his animal nature alone, then spirit and body would both lose their dignity. On the other hand, should he deny the spirit and consider matter, the body, as the only reality, he would likewise lose his greatness. … Yet it is neither the spirit alone nor the body alone that loves: it is man, the person, a unified creature composed of body and soul, who loves. Only when both dimensions are truly united, does man attain his full stature. Only thus is love —eros—able to mature and attain its authentic grandeur. …
Christian faith … has always considered man a unity in duality, a reality in which spirit and matter compenetrate, and in which each is brought to a new nobility. True, eros tends to rise “in ecstasy” towards the Divine, to lead us beyond ourselves; yet for this very reason it calls for a path of ascent, renunciation, purification and healing. …
Love embraces the whole of existence in each of its dimensions, including the dimension of time. It could hardly be otherwise, since its promise looks towards its definitive goal: love looks to the eternal. Love is indeed “ecstasy”, not in the sense of a moment of intoxication, but rather as a journey, an ongoing exodus out of the closed inward-looking self towards its liberation through self-giving, and thus towards authentic self-discovery and indeed the discovery of God: “Whoever seeks to gain his life will lose it, but whoever loses his life will preserve it” (Lk 17:33), as Jesus says throughout the Gospels (cf. Mt 10:39; 16:25; Mk 8:35; Lk 9:24; Jn 12:25). In these words, Jesus portrays his own path, which leads through the Cross to the Resurrection: the path of the grain of wheat that falls to the ground and dies, and in this way bears much fruit. Starting from the depths of his own sacrifice and of the love that reaches fulfilment therein, he also portrays in these words the essence of love and indeed of human life itself. …
Anyone who wishes to give love must also receive love as a gift. Certainly, as the Lord tells us, one can become a source from which rivers of living water flow (cf. Jn 7:37-38). Yet to become such a source, one must constantly drink anew from the original source, which is Jesus Christ, from whose pierced heart flows the love of God (cf. Jn 19:34). …
[Pope Gregory the Great] tells us that the good pastor must be rooted in contemplation. Only in this way will he be able to take upon himself the needs of others and make them his own: “per pietatis viscera in se infirmitatem caeterorum transferat”. Saint Gregory speaks in this context of Saint Paul, who was borne aloft to the most exalted mysteries of God, and hence, having descended once more, he was able to become all things to all men (cf. 2 Cor 12:2-4; 1 Cor 9:22). He also points to the example of Moses, who entered the tabernacle time and again, remaining in dialogue with God, so that when he emerged he could be at the service of his people. “Within [the tent] he is borne aloft through contemplation, while without he is completely engaged in helping those who suffer: intus in contemplationem rapitur, foris infirmantium negotiis urgetur.” …
The divine power that Aristotle at the height of Greek philosophy sought to grasp through reflection, is indeed for every being an object of desire and of love —and as the object of love this divinity moves the world—but in itself it lacks nothing and does not love: it is solely the object of love. The one God in whom Israel believes, on the other hand, loves with a personal love. His love, moreover, is an elective love: among all the nations he chooses Israel and loves her—but he does so precisely with a view to healing the whole human race. God loves, and his love may certainly be called eros, yet it is also totally agape. …
When Jesus speaks in his parables of the shepherd who goes after the lost sheep, of the woman who looks for the lost coin, of the father who goes to meet and embrace his prodigal son, these are no mere words: they constitute an explanation of his very being and activity. His death on the Cross is the culmination of that turning of God against himself in which he gives himself in order to raise man up and save him. This is love in its most radical form. By contemplating the pierced side of Christ (cf. 19:37), we can understand the starting-point of this Encyclical Letter: “God is love” (1 Jn 4:8). It is there that this truth can be contemplated. It is from there that our definition of love must begin. In this contemplation the Christian discovers the path along which his life and love must move. …
“Worship” itself, Eucharistic communion, includes the reality both of being loved and of loving others in turn. A Eucharist which does not pass over into the concrete practice of love is intrinsically fragmented. Conversely, as we shall have to consider in greater detail below, the “commandment” of love is only possible because it is more than a requirement. Love can be “commanded” because it has first been given. …
The parable of the Good Samaritan (cf. Lk 10:25-37) offers two particularly important clarifications. Until that time, the concept of “neighbour” was understood as referring essentially to one’s countrymen and to foreigners who had settled in the land of Israel; in other words, to the closely-knit community of a single country or people. This limit is now abolished. Anyone who needs me, and whom I can help, is my neighbour. The concept of “neighbour” is now universalized, yet it remains concrete. Despite being extended to all mankind, it is not reduced to a generic, abstract and undemanding expression of love, but calls for my own practical commitment here and now. The Church has the duty to interpret ever anew this relationship between near and far with regard to the actual daily life of her members. Lastly, we should especially mention the great parable of the Last Judgement (cf. Mt 25:31-46), in which love becomes the criterion for the definitive decision about a human life’s worth or lack thereof. Jesus identifies himself with those in need, with the hungry, the thirsty, the stranger, the naked, the sick and those in prison. “As you did it to one of the least of these my brethren, you did it to me” (Mt 25:40). Love of God and love of neighbour have become one: in the least of the brethren we find Jesus himself, and in Jesus we find God. …
The lives of the saints are not limited to their earthly biographies but also include their being and working in God after death. In the saints one thing becomes clear: those who draw near to God do not withdraw from men, but rather become truly close to them. In no one do we see this more clearly than in Mary. The words addressed by the crucified Lord to his disciple—to John and through him to all disciples of Jesus: “Behold, your mother!” (Jn 19:27)—are fulfilled anew in every generation. Mary has truly become the Mother of all believers. Men and women of every time and place have recourse to her motherly kindness and her virginal purity and grace, in all their needs and aspirations, their joys and sorrows, their moments of loneliness and their common endeavours. They constantly experience the gift of her goodness and the unfailing love which she pours out from the depths of her heart. The testimonials of gratitude, offered to her from every continent and culture, are a recognition of that pure love which is not self- seeking but simply benevolent. At the same time, the devotion of the faithful shows an infallible intuition of how such love is possible: it becomes so as a result of the most intimate union with God, through which the soul is totally pervaded by him—a condition which enables those who have drunk from the fountain of God’s love to become in their turn a fountain from which “flow rivers of living water” (Jn 7:38). Mary, Virgin and Mother, shows us what love is and whence it draws its origin and its constantly renewed power. To her we entrust the Church and her mission in the service of love:
Holy Mary, Mother of God,
you have given the world its true light,
Jesus, your Son – the Son of God.
You abandoned yourself completely
to God’s call
and thus became a wellspring
of the goodness which flows forth from him.
Show us Jesus. Lead us to him.
Teach us to know and love him,
so that we too can become
capable of true love
and be fountains of living water
in the midst of a thirsting world.