The enemies of Pietism have confounded it with Mysticism. There are undoubted points in common, but Pietism was aggressive instead of contemplative; it was practical rather than theoretical. Both systems made purity of life essential, but Mysticism could not guard against mental disease, while Pietism enjoyed a long season of healthful life. The latter was far too much engaged in relieving immediate and pressing wants to fall into the gross errors which mark almost the entire career of the former. Pietism was mystical in so far as it made purity of heart essential to salvation; but it was the very antipodes of Mysticism when organized and operating against a languid and torpid Church with such weapons as Spener and his coadjutors employed. Boehme and Spener were world-wide apart in many respects; but in purity of heart they were beautifully in unison. Pietism commenced upon the principle that the Church was corrupt; that the ministry were generally guilty of gross neglect; and that the people were cursed with spiritual death. It proposed as a theological means of improvement: I. That the scholastic theology, which reigned in the academies, and was composed of the intricate and disputable doctrines and obscure and unusual forms of expression, should be totally abolished. II. That polemical divinity, which comprehended the controversies subsisting between Christians of different communions, should be less eagerly studied and less frequently treated, though not entirely neglected. III. That all mixture of philosophy and human science with divine wisdom was to be most carefully avoided; that is, that pagan philosophy and classical learning should be kept distinct from, and by no means supersede, Biblical theology. But, IV. That, on the contrary, all those students who were designed for the ministry should be kept accustomed from their early youth to the perusal and study of the Holy Scriptures, and be taught a plain system of theology drawn from these unerring sources of truth. V. That the whole course of their education should be so directed as to render them useful in life, by the practical power of their doctrine, and the commanding influence of their example.[25]