"You must understand," said Mr. George, "that the nature and design of the ceremonies of public worship in a Protestant and in a Catholic church are essentially and totally distinct. The Protestants meet to offer up their common prayers and supplications to God, and to listen to the instructions which the minister gives them in respect to their duties. The Catholics, on the other hand, meet to have a sacrifice performed, as an atonement for their sins. The Protestants think that all the atonement which is necessary for the sins of the whole world has already been made by the sufferings and death of Christ. The Catholics think that a new sacrifice must be made for them from time to time by the priest; and they come together to kneel before the altar while he makes it, in order that they may have a share in the benefits of it. Thus the Protestant comes to church to hear something said; the Catholic to witness something done. This is one reason, in fact, why the Catholic churches may very properly be enormously large. The people who assemble in them do not come to hear, so much as to see, or rather to be present and know what is going on, and to take part in it in heart. "The great thing that is done," continued Mr. George, "is the receiving of the communion, that is, of the bread and wine of the Lord's supper, which they suppose is renewing the sacrifice of Christ, for the benefit of those who are present at the ceremony. Did you see the man who was kneeling at the foot of the steps of the altar while the priest was performing, and who brought two little silver vessels, out of which he poured something into the priest's cup?" "Yes," said Rollo. "The silver vessels were on a little shelf at first, at the side of the altar, and he went at the proper time and kneeled with them by the side of the priest, until the priest was ready to take them." "One of these vessels," continued Mr. George, "contained wine, the other water. When the priest held his large silver cup out to him, the man poured some of the wine into it." "Yes," said Rollo. "And I saw the priest wiping out the cup very carefully, with a large white napkin, before he held it out for the wine." "True," said Mr. George. "When he took the wine in his cup, it was common wine, in its natural state; but afterwards, by being consecrated to the service of the mass, it was changed, they all believe, into the blood of Christ. It looked, they knew, just as it did before; but though it thus still retained all the appearance of wine, they believe that it became really and truly the blood of Christ, and that the priest in drinking it would make a sacrifice of Christ anew for the salvation of the souls of those who should witness and join in the ceremony.