The _altar_, which is reached by means of steps, represents Mount Calvary, upon which Christ died with His arms extended as if to enfold all men as brothers. The _crucifix_ recalls Jesus dying on the cross. The _lighted candles_ are symbols of the faith and devotion which ought to burn in the hearts of the faithful when present at Mass. The _sacred vestments_, embroidered with the sign of the cross, indicate that the priest is the minister and visible representative of Jesus Christ, the invisible priest. The sign of the cross made many times by the priest over the host and chalice reminds us that we offer to God the divine Victim of the cross, and that we ought to unite ourselves to Him by loving the cross, by patience and Christian penance. We genuflect because Our Lord is really present. If we know He is not present on the altar we bow in honor of the place where He sometimes reposes. _Holy water_ is used to signify that our souls must be pure if we wish God to answer our prayers. _Incense_ is used at solemn High Mass and at Vespers. It is symbolic of prayer, agreeably to the words of the 140th psalm: "Let my prayer, O Lord, be directed as incense in Thy sight." And St. John, describing the heavenly Jerusalem in the 8th chapter of the Apocalypse, says: "Another angel came, and stood before the altar, having a golden censer; and there was given him much incense, that he should offer of the prayers of all saints upon the golden altar which is before the throne of God." The sacrifice of the Mass, then, is the sacrifice of Calvary, since the same Victim is offered up and by the same High Priest, Jesus Christ. The Emanuel, the God with us, the thought of whom made the prophets tremble centuries before He came, that divine Teacher who loves to dwell with the children of men, the Catholic Church beholds dwelling in the midst of us on our altars. If you have visited some of our ancient cathedrals, or any of our magnificent modern churches, and admired the varied ornaments or artistic wonders therein; if you have ever been present at our religious solemnities and witnessed the gravity of our ceremonies, the beauty of the chants, the piety of the adorers; if you have reflected upon the spirit of sacrifice and self-forgetfulness so common to Catholicism and so unknown elsewhere--that spirit which moves thousands of the young of both sexes to forsake the world and devote themselves to the care of the sick, the education of the young, and to other works of charity--if you have witnessed these things and reflected upon them, you can not but have asked yourself why are such gorgeous temples built; why such magnificent works of art as displayed on the altar, the sacred vessels, paintings, and other things in the church? What prompts such sacrifices? And the answer will be, because the church is the edifice where God in the holy Mass daily renews the prodigies of His mercy, and it can never be worthy of His love; because God, who