The liturgy of Palm Sunday puts these words on our lips: “Swing back, doors, higher yet; reach higher, immemorial gates, to let the king enter in triumph!” Anyone who barricades himself in the citadel of his own selfishness will never come down onto the battlefield. But if he raises the gates of his fortress and lets in the king of peace, then he will go out with the king to fight against all that misery which blurs the eyes and numbs the conscience. “Reach higher, immemorial gates.” The fact that Christianity requires us to fight is nothing new. It has always been that way. If we do not fight, we will not win and if we do not win, we will not obtain peace. Without peace human joy is illusory, fake, barren, and it is not translated into service of men, or works of charity and justice, of pardon and mercy, or the service of God.