Today what people have in view is eliminating suffering from the world. For the individual, that means avoiding pain and suffering in whatever way. Yet we must also see that it is in this very way that the world becomes very hard and very cold. Pain is part of being human. Anyone who really wanted to get rid of suffering would have to get rid of love before anything else, because there can be no love without suffering, because it always demands an element of self-sacrifice, because, given temperamental differences and the drama of situations, it will always bring with it renunciation and pain.
When we know that the way of love—this exodus, this going out of oneself—is the true way by which man becomes human, then we also understand that suffering is the process through which we mature. Anyone who has inwardly accepted suffering becomes more mature and more understanding of others, becomes more human. Anyone who has consistently avoided suffering does not understand other people; he becomes hard and selfish.
Love itself is a passion, something we endure. In love I experience first a happiness, a general feeling of happiness. Yet, on the other hand, I am taken out of my comfortable tranquility and have to let myself be reshaped. If we say that suffering is the inner side of love, we also understand why it is so important to learn how to suffer—and why, conversely, the avoidance of suffering renders someone unfit to cope with life.
Pope Benedict XVI
via Julie D.