Yet there were dangers in the pursuit of the _via purgativa_ and the _via illuminativa_. The followers of Amaury of Bène, who came to be popularly known in Germany as Begghards and Beguines, invented the term Illuminism to describe the condition of the soul suffused with divine light and held that any one, thus filled with the Holy Ghost, was impeccable, irrespective of the sins which he might commit; he was simply following the impulses of the Spirit which can do no sin. Master Eckhart, the founder of German mysticism, was prosecuted for sharing in these venturesome speculations and, if the twenty-eight articles condemned by John XXII were correctly drawn from his writings, he admitted the common divinity of man and God and that, in the sight of God, sin and virtue are the same.[8] Zealots too there were who taught the pre-eminent holiness of nudity and, in imitation of the follies of early Christian ascetics, assumed to triumph over the lusts of the flesh by exposing themselves to the crucial temptation of sleeping with the other sex and indulging in lascivious acts.[9] The condemnation, by the Council of Vienne in 1312, of the tenets of the so-called Begghards respecting impeccability[10] was carried into the body of canon law and thus was rendered familiar to jurists, when mysticism came to be regarded as dangerous and was subjected to the Inquisition. That it should eventually be so regarded was inevitable. The mystic, who considered himself to be communing directly with God and who held meditation and mental prayer to be the highest of religious acts, was apt to feel himself released from ecclesiastical precepts and to regard with indifference, if not with contempt, the observances enjoined by the Church as essential to salvation. If the inner light was a direct inspiration from God, it superseded the commands of the Holy See and, under such impulse, private judgement was to be followed, irrespective of what the Church might ordain. In all this there was the germ of a rebellion as defiant as that of Luther. Justification by faith might not be taught, but justification by works was cast aside as unworthy of the truly spiritual man. The new Judaism, decried by Erasmus, which relied on external observances, was a hindrance rather than a help to salvation. Francisco de Osuna, the teacher of Santa Teresa, asserts that oral prayer is a positive injury to those advanced in mental prayer.[11] San Juan de la Cruz says that church observances, images and places of worship are merely for the uninstructed, like toys that amuse children; those who are advanced must liberate themselves from these things which only distract from internal contemplation.[12] San Pedro de Alcántara, in his enumeration of the nine aids to devotion, significantly omits all reference to the observances prescribed by the Church.[13] In an ecclesiastical establishment, which had built up its enormous wealth by