Respecting the Eucharist, Calvin took a middle course between Luther and Zwingli,--believing neither in the actual presence of Christ in the consecrated bread, nor regarding it as a mere symbol, but a means by which divine grace is imparted; a mirror in which we may contemplate Christ. Baptism he considered only as an indication of divine grace, and not essential to salvation; thereby differing from Luther and the Catholic church. Yet he was as strenuous in maintaining these sacraments as a Catholic priest, and made excommunication as fearful a weapon as it was in the Middle Ages. For admission to the Lord's Supper, and thus to the membership of the visible Church, it would seem that his requirements were not rigid, but rather very simple, like those of the primitive Christians,--namely, faith in God and faith in Christ, without any subtile and metaphysical creeds, such as one might expect from his inexorable theological deductions. But he would resort to excommunication as a discipline, as the only weapon which the Church could use to bind its members together, and which had been used from the beginning; yet he would temper severity with mildness and charity, since only God is able to judge the heart. And herein he departed from the customs of the Middle Ages, and did not regard the excommunicated as lost, but to be prayed for by the faithful. No one, he maintained, should be judged as deserving eternal death who was still in the hands of God. He made a broad distinction between excommunication and anathema; the latter, he maintained, should never, or very rarely, be pronounced, since it takes away the hope of forgiveness, and consigns one to the wrath of God and the power of Satan. He regarded the Sacrament of the Lord's Supper as a means to help manifold infirmities,--as a time of meditation for beholding Christ the crucified; as confirming reconciliation with God; as a visible sign of the body of Christ, recognizing his actual but spiritual presence. Luther recognized the bodily presence of Christ in the Eucharist, while he rejected transubstantiation and the idea of worshipping the consecrated wafer as the real God. This difference in the opinion of the reformers as to the Eucharist led to bitter quarrels and controversies, and divided the Protestants. Calvin pursued a middle and moderate course, and did much to harmonize the Protestant churches. He always sought peace and moderation; and his tranquillizing measures were not pleasant to the Catholics, who wished to see divisions among their enemies.