But this supernatural significance exists only in the imagination; to the senses, the wine remains wine, the bread, bread. The Schoolmen therefore had recourse to the precious distinction of substance and accidents. All the accidents which constitute the nature of wine and bread are still there; only that which is made up by these accidents, the subject, the substance, is wanting, is changed into flesh and blood. But all the properties together, whose combination forms this unity, are the substance itself. What are wine and bread if I take from them the properties which make them what they are? Nothing. Flesh and blood have therefore no objective existence; otherwise they must be an object to the unbelieving senses. On the contrary: the only valid witnesses of an objective existence--taste, smell, touch, sight--testify unanimously to the reality of the wine and bread, and nothing else. The wine and bread are in reality natural, but in imagination divine substances. Faith is the power of the imagination, which makes the real unreal, and the unreal real: in direct contradiction with the truth of the senses, with the truth of reason. Faith denies what objective reason affirms, and affirms what it denies. [188] The mystery of the Lord's Supper is the mystery of faith: [189]--hence the partaking of it is the highest, the most rapturous, blissful act of the believing soul. The negation of objective truth which is not gratifying to feeling, the truth of reality, of the objective world and reason,--a negation which constitutes the essence of faith,--reaches its highest point in the Lord's Supper; for faith here denies an immediately present, evident, indubitable object, maintaining that it is not what the reason and senses declare it to be, that it is only in appearance bread, but in reality flesh. The position of the Schoolmen, that according to the accidents it is bread, and according to the substance flesh, is merely the abstract, explanatory, intellectual expression of what faith accepts and declares, and has therefore no other meaning than this: to the senses or to common perception it is bread, but in truth, flesh. Where therefore the imaginative tendency of faith has assumed such power over the senses and reason as to deny the most evident sensible truths, it is no wonder if believers can raise themselves to such a degree of exaltation as actually to see blood instead of wine. Such examples Catholicism has to show. Little is wanting in order to perceive externally what faith and imagination hold to be real.