It has already been ten years since Louis and Zélie Martin, the parents of Saint Thérèse of Lisieux, were canonized. Reading the letter that Pope Leo XIV has just sent to Bishop Bruno Feillet1 to mark this anniversary, we cannot help but be deeply moved by its message. In it, the Pope speaks with simplicity and tenderness about the beauty of Christian marriage—not as a distant ideal—but as a concrete path to holiness, lived in the heart of everyday life.