If we just worry about the big picture, we are powerless. So my secret is to start right away doing whatever little work I can do. I try to give joy to one person in the morning, and remove the suffering of one person in the afternoon. If you and your friends do not despise the small work, a million people will remove a lot of suffering.
At times God seems to give us stones impossible to digest. In these moments think of the pearl oyster: it retains the accidental grain of sand within itself for a long time, constantly bathing in it with its secretions. In due time a magnificent pearl is created. In like manner the animosities and antipathies that make their way into our hearts are seemingly indigestible pebbles. However, if we keep them wrapped in prayer, they will become pearls of love. Prayer provokes this miracle of love. Indeed, what appears to be indigestible can become real nourishment for prayer.