To be immersed in God’s truth and thus in his holiness – for us this also means to acknowledge that the truth makes demands, to stand up, in matters great and small, to the lie which in so many different ways is present in the world; accepting the struggles associated with the truth, because its inmost joy is present within us. Nor, when we talk about being sanctified in the truth, should we forget that in Jesus Christ truth and love are one. Being immersed in him means being immersed in his goodness, in true love. True love does not come cheap, it can also prove quite costly. It resists evil in order to bring men true good. If we become one with Christ, we learn to recognize him precisely in the suffering, in the poor, in the little ones of this world; then we become people who serve, who recognize our brothers and sisters in him, and in them, we encounter him.
Benedict XVI