St. Bernard, in a letter to certain monks, warned them that to seek relief from disease in medicine was in harmony neither with their religion nor with the honour and purity of their order. This view even found its way into the canon law, which declared the precepts of medicine contrary to Divine knowledge. As a rule, the leaders of the Church discouraged the theory that diseases are due to natural causes, and most of them deprecated a resort to surgeons and physicians rather than to supernatural means.
Out of these and similar considerations was developed the vast system of ``pastoral medicine,'' so powerful not only through the Middle Ages, but even in modern times, both among Catholics and Protestants. As to its results, we must bear in mind that, while there is no need to attribute the mass of stories regarding miraculous cures to conscious fraud, there was without doubt, at a later period, no small admixture of belief biased by self-interest, with much pious invention and suppression of facts. Enormous revenues flowed into various monasteries and churches in all parts of Europe from relics noted for their healing powers. Every cathedral, every great abbey, and nearly every parish church claimed possession of healing relics. While, undoubtedly, a childlike faith was at the bottom of this belief, there came out of it unquestionably a great development of the mercantile spirit. The commercial value of sundry relics was often very high. In the year 1056 a French ruler pledged securities to the amount of ten thousand solidi for the production of the relics of St. Just and St. Pastor, pending a legal decision regarding the ownership between him and the Archbishop of Narbonne. The Emperor of Germany on one occasion demanded, as a sufficient pledge for the establishment of a city market, the arm of St. George. The body of St. Sebastian brought enormous wealth to the Abbey of Soissons; Rome, Canterbury, Treves, Marburg, every great city, drew large revenues from similar sources, and the Venetian Republic ventured very considerable sums in the purchase of relics.
Naturally, then, corporations, whether lay or ecclesiastical, which drew large revenue from relics looked with little favour on a science which tended to discredit their investments.
Nowhere, perhaps, in Europe can the philosophy of this development of fetichism be better studied to-day than at Cologne. At the cathedral, preserved in a magnificent shrine since about the twelfth century, are the skulls of the Three Kings, or Wise Men of the East, who, guided by the star of Bethlehem, brought gifts to the Saviour. These relics were an enormous source of wealth to the cathedral chapter during many centuries. But other ecclesiastical bodies in that city were both pious and shrewd, and so we find that not far off, at the church of St. Gereon, a cemetery has been dug up, and the bones distributed over the walls as the relics of St. Gereon and his Theban band of martyrs! Again, at the neighbouring church of St. Ursula, we have the later spoils of another cemetery, covering the interior walls of the church as the bones of St. Ursula and her eleven thousand virgin martyrs: the fact that many of them, as anatomists now declare, are the bones of men does not appear in the Middle Ages to have diminished their power of competing with the relics at the other shrines in healing efficiency.
No error in the choice of these healing means seems to have diminished their efficacy. When Prof. Buckland, the eminent osteologist and geologist, discovered that the relics of St. Rosalia at Palermo, which had for ages cured diseases and warded off epidemics, were the bones of a goat, this fact caused not the slightest diminution in their miraculous power.
Other developments of fetich cure were no less discouraging to the evolution of medical science. Very important among these was the Agnus Dei, or piece of wax from the Paschal candles, stamped with the figure of a lamb and Consecrated by the Pope. In 1471 Pope Paul II expatiated to the Church on the efficacy of this fetich in preserving men from fire, shipwreck, tempest, lightning, and hail, as well as in assisting women in childbirth; and he reserved to himself and his successors the manufacture of it. Even as late as 1517 Pope Leo X issued, for a consideration, tickets bearing a cross and the following inscription: ``This cross measured forty times makes the height of Christ in his humanity. He who kisses it is preserved for seven days from fallingsickness, apoplexy, and sudden death.''
Naturally, the belief thus sanctioned by successive heads of the Church, infallible in all teaching regarding faith and morals, created a demand for amulets and charms of all kinds; and under this influence we find a reversion to old pagan fetiches. Nothing, on the whole, stood more Constantly in the way of any proper development of medical science than these fetich cures, whose efficacy was based on theological reasoning and sanctioned by ecclesiastical policy. It would be expecting too much from human nature to imagine that pontiffs who derived large revenues from the sale of the Agnus Dei, or priests who derived both wealth and honours from cures wrought at shrines under their care, or lay dignitaries who had invested heavily in relics, should favour the development of any science which undermined their interests.