Believing thus with all his heart both in the excellence of reason and in a true inspiration of the spirit granted to the pure in heart, but never dissociating the latter from the former; well convinced that 'Christian religion is rational throughout,' and that the suggestions of the Holy Spirit are in all cases agreeable to reason—More wrote with much force and beauty of argument his 'Exorcism of Enthusiasm.' He showed that to abandon reason for fancy is to lay aside the solid supports of religion, to trust faith to the mere ebb and flow of 'melancholy,' and so to confirm the sceptic in his doubts and the atheist in his unbelief. He dwelt upon the unruly power of imagination, its deceptive character, its intimate connection with varying states of physical temperament—upon the variety of emotional causes which can produce quakings and tremblings and other convulsive forms of excitement—upon the delusiveness of visions, and revelations, and ecstasies, and their near resemblance to waking dreams—upon the sore temptations which are apt to lead into sin those who so closely link spirituality with bodily feelings, making religion sensual. He warned his readers against that sort of intoxication of the understanding, when the imagination is suffered to run wild in allegorical interpretations of Scripture, in fanciful allusions, in theories of mystic influences and properties which carry away the mind into wild superstitions and Pagan pantheism. He spoke of the self-conceit of many fanatics, their turbulence, their heat and narrow scrupulosity, and asked how these things could be the fruits of heavenly illumination. He suggested as the proper remedies against enthusiasm, temperance (by which he meant temperate diet, moderate exercise, fresh air, a due and discreet use of devotion), humility, and the sound tests of reason—practical piety, and service to the Church of God. Such is the general scope of his treatise; but the most interesting and characteristic portion is towards the close and in the Scholia appended to it, in which he speaks of 'that true and warrantable enthusiasm of devout and holy souls,' that 'delicious sense of the Divine life'[473] which the spirit of man is capable of receiving. If space allowed, one or two fine passages might be quoted in which he describes these genuine emotions. He has also some good remarks upon the value, within guarded limits, of disturbed and excited religious feelings in rousing the soul from lethargy, and acting as external aids to dispose the mind for true spiritual influences.

Henry More died the year before King William's accession. But his opinions were, no doubt, shared by some of the best and most cultivated men in the English Church during the opening years of the eighteenth century. After a time his writings lost their earlier popularity. Wesley, to his credit, recommended them in 1756 to the use of his brother clergymen.[474] As a rule, they appear at that time to have been but little read; their spiritual tone is pitched in too high a key for the prevalent religious taste of the period which had then set in. Some years had to pass before the rise of a generation more prepared to draw refreshment from the imaginative and somewhat mystical beauties of his style and sentiment.[475]

When once the genius of Locke was in the ascendant, more spiritual forms of philosophy fell into disrepute. Descartes, Malebranche, Leibnitz were considered almost obsolete; More and Cudworth were out of favour: and there was but scanty tolerance for any writer who could possibly incur the charge of transcendentalism or mysticism. It is not that Cartesian or Platonic, or even mystic opinions, are irreconcileable with Locke's philosophy. When he spoke of sensation and reflection as the original sources of all knowledge, there was ample room for innate ideas, and for intuitive perceptions, under the shelter of terms so indefinite. Moreover, the ambiguities of expression and apparent inconsistencies of thought, which stand out in marked contrast to the force and lucidity of his style, are by no means owing only to his use of popular language, and his studied avoidance of all that might seem to savour of the schools. His devout spirit rebelled against the carefully defined limits which his logical intellect would have imposed upon it. He could not altogether avoid applying his system to the absorbing subjects of theology, but he did so with some unwillingness and with much reserve. Revelation, once acknowledged as such, was always sacred ground to him; and though he often appears to reduce all evidence to the external witness of the senses, there is something essentially opposed to materialistic notions, in his feeling that there is that which we do not know simply by reason of our want of a new and different sense, by which, if we had it, we might know our souls as we know a triangle.[476] Locke would have heartily disowned the conclusions of many who professed themselves his true disciples, and of many others whose whole minds had been trained and formed under the influences of his teaching, and who insisted that they were but following up his arguments to their legitimate consequences.[477] The general system was the same; but there was nothing in common between the theology of Locke and Toland's repudiation of whatever in religion transcended human reason, or Bolingbroke's doubts as to the immortality of the soul, or the pronounced materialism of Hartley and Condillac, or the blank negative results at which Hume arrived.

But though Locke and multitudes of his admirers were profoundly Christian in their belief, the whole drift of his thought tended to bring prominently forward the purely practical side of religion and the purely intellectual side of theology, and to throw into the background, and reduce to its narrowest compass, the more entirely spiritual region which marks the contact of the human with the Divine. Its uncertain lights and shadows, its mysteries, obscurities, and difficulties, were thoroughly distrusted by him. He did not—a religious mind like his could not—deny the existence of those feelings and intuitions which, from their excessive prominence in that school, may be classed under the name of mystic. But he doubted their importance and dreaded their exaggerations. Not only could they find no convenient place, scarcely even a footing, in his philosophical system, but they were out of accord with his own temperament and with the opinions, which he was so greatly contributing to form, of the age in which he lived. They offended against his love of clearness, his strong dislike of all obscurity, his wish to see the chart of the human faculties mapped out and defined, his desire to translate abstract ideas into the language of sound, practical, ordinary sense, divested as far as could be of all that was open to dispute, and of all that could in any way be accounted visionary. His perpetual appeal lay to the common understanding, and he regarded, therefore, with much suspicion, emotions which none could at all times realise, and which to some minds were almost, or perhaps entirely unknown. Lastly, his fervent love of liberty indisposed him to admissions which might seem to countenance authority over the consciences of men on the part of any who should assert special claims to spiritual illumination.

Locke struck a keynote which was harped upon by a host of theologians and moralists after him, whenever, as was constantly the case, they had occasion to raise their voice against that dreaded enemy, enthusiasm. There were many who inveighed against 'the new modish system of reducing all to sense,' when used to controvert the doctrines of revelation. But while with vigour and success they defended the mysteries of faith against those who would allow nothing but what reason could fairly grasp, and while they dwelt upon the paramount authority of the Spirit which inspired Holy Scripture, they would allow no sort of spiritual influence to compete with reason as a judge of truth. Reason, it was perpetually argued, is sufficient for all our present needs. Revelation is adequately attested by evidence addressed to the reason. We need no other proof or ground of assent; at all events, none other is granted to us. It was not so indeed in the first age of the Church. Special gifts of spiritual knowledge and illumination were then given to meet special requirements. The Holy Spirit was then in very truth immediately present in power, the greatest witness to the truth, and its direct revealer to the hearts of men. Many of the principal preachers and theological writers of the eighteenth century dwell at length upon the fulness of that spiritual outpouring. But it is not a little remarkable to notice with what singular care they often limit and circumscribe its duration. A little earlier or a little later, but, at all events, at the end of a generation or two after the first Christian Pentecost, a line of demarcation was to be drawn and jealously guarded.

In the second book of Warburton's 'Doctrine of Grace' there is a singular instance of apparent incapacity on the part of a most able reasoner to acknowledge the possible existence in his own day of other spiritual influences than those which, in the most limited sense of the word, may be called ordinary. He is speaking of the splendour of the gifts which shed their glory upon the primitive Church and afterwards passed away. He dwells with admiration upon the sudden and entire changes which were made in the dispositions and manner of those whom the Holy Spirit had enlightened. Sacred antiquity, he says, is unmistakeable in its evidence on this point, and even the assailers of Christianity confessed it. Conversions were effected among early Christians such as could not be the result of mere rational conviction. It is utterly impossible for the magisterial faculty of reason to enforce her conclusions with such immediate power, and to win over the will with such irresistible force, as to root out at once inveterate habits of vice. 'To what must we ascribe so total a reform, but to the all-powerful operation of grace?'[478] These remarks are true enough; but it seems incredible that, writing in the very midst of an extraordinary religious outburst, he should calmly assume the impossibility in other than primitive times of such sudden changes from irreligion to piety, and should even place the miraculous conversions of apostolic times at the head of an argument against Methodist enthusiasts. Well might Wesley remark with some surprise, 'Never were reflections more just than these,'[479] and go on to show that the very same changes were constantly occurring still.

In truth, it may be said without any disparagement of a host of eminent English divines of the eighteenth century, that their entire sympathies were with the reasonable rather than with the spiritual side of religion. Their ideal of Christian perfection was in many respects an elevated one, but absolutely divested of that mystic element which in every age of the Church has seemed to be inseparable from the higher types of saintliness. If we may judge from the treatises of Lord Lyttelton and Dean Graves, the character even of the apostles had to be carefully vindicated from all suspicion of any taint of enthusiasm if they were to maintain their full place of reverence as leaders and princes of the Christian army. Only it must not be supposed that this religious characteristic of the age was by any means confined to the sceptical and indifferent on the one hand, or to persons of a sober and reflective spirit on the other. It was almost universal. John Wesley, for example, repeatedly and anxiously rebuts the charges of enthusiasm which were levelled upon him from all sides. He would have it understood that he had for ever done with enthusiasm when once he had separated from the Moravians. The same shrinking from the name, as one of opprobrium, is shown by Dr. Watts;[480] and one of the greatest troubles in Hannah More's life seems to have been her annoyance, that she and other faithful members of the English Church should be defamed as encouragers of enthusiasm.[481]

The eighteenth century was indeed an age when sober reason would hear of no competitor, and whose greatest outburst of religious zeal characteristically took its name from the well-ordered method with which it was organised. It will not, however, be inferred that enthusiasm, as the word was then commonly understood, scarcely existed. On the contrary, the vigour and constancy of the attack points with sufficient clearness to the evident presence of the enemy. In fact, although the more exaggerated forms of mysticism and fanaticism have never permanently thriven on English soil, there has never been an age when what may be called mystical religion has not had many ardent votaries. For even the most extravagant of its multiform phases embody an important element of truth, which cannot be neglected without the greatest detriment to sound religion. Whatever be its particular type, it represents the protest of the human soul against all that obscures the spirituality of belief. But of all the accidents and externals of religion, there is not one, however important in itself, which may not be made unduly prominent, and under such circumstances interfere between the soul and the object of its worship. It will be readily understood, therefore, upon how great a variety of grounds that protest may be based, how right and reasonable it may sometimes be, but also how easily it may itself run into excess, and how quickly the understanding may lose its bearings, when once, for fear of the abuse, it begins to dispense with what was not intended to check, but to guide and regulate the aspirations of the Spirit. Mystical and enthusiastical religion, whether in its sounder or in its exaggerated and unhealthy forms, may be a reaction against an over-assertion of the powers of reason in spiritual matters and questions of evidence, or against the undue extension, in subjects too high for it, of the domain of 'common sense;' or it may be a vindication of the spiritual rights of the uneducated against the pretensions of learning; or an assertion of the judgment and conscience of the individual against all tyranny of authority. It may be a protest against excessive reverence for the letter of Holy Scripture as against the Spirit which breathes in it, against all appearance of limiting inspiration to a book, and denying it to the souls of living men. It may express insurrection against all manner of formalism, usages which have lost their significance, rites which have ceased to edify, doctrines which have degenerated into formulas, orthodoxy which has become comparatively barren and profitless. It may represent a passionate longing to escape from party differences and sectarian strife into a higher, purer atmosphere, where the free Spirit of God bloweth where it listeth. It often owes its origin to strong revulsion against popular philosophies which limit all consciousness to mere perceptions of the senses, or against the materialistic tendencies which find an explanation for all mysteries in physical phenomena. It may result from endeavours to find larger scope for reverie and contemplation, or fuller development for the imaginative elements of religious thought. It may be a refuge for spirits disgusted at an unworthy and utilitarian system of ethics, and at a religion too much degraded into a code of moral precepts. All these tendencies, varying in every possible degree from the healthiest efforts after greater spirituality of life to the wildest excesses of fanatical extravagance, may be copiously illustrated from the history of enthusiasm. The writers of the eighteenth century were fully alive to its dangers. It was easy to show how mystical religion had often led its too eager, or too untaught followers into the most mischievous antinomianism of doctrine and life, into allegorising away the most fundamental grounds of Christianity, and into the vaguest Pantheism. They could produce examples in abundance of bewildered intellects, of 'illuminations' obscurer than any darkness, of religious rapture, in its ambitious distrust of reason, lapsing into physical agencies and coarse materialism. They could hold up, in ridicule or warning, profuse illustrations of exorbitant spiritual pride, blind credulity, infatuated self-deceit, barefaced imposture. It was much more congenial to the prevalent temper of the age to draw a moral from such perversions of a tone of feeling with which there was little sympathy, than to learn a useful lesson from the many truths contained in it. Doubtless, it is not easy to deal with principles which have been maintained in an almost identical form, but with consequences so widely divergent, by some of the noblest, and by some of the most foolish of mankind, by true saints and by gross fanatics. The contemporaries of Locke, Addison, and Tillotson, trained in a wholly different school of thought, were ill-fitted to enter with patience into such a subject, to see its importance, to discriminate its differences, and to solve its perplexities.

At the opening of the eighteenth century, the elements of enthusiasm were too feeble to show themselves in any acknowledged form either in the Church of England or in the leading Nonconformist bodies. In England, no doubt, as in every other European country, there were, as Mr. Vaughan observes, 'Scattered little groups of friends, who nourished a hidden devotion by the study of pietist and mystical writings.... Whenever we can penetrate behind the public events which figure in history at the close of the seventeenth, and the opening of the eighteenth century, indications are discernible, which make it certain that a religious vitality of this description was far more widely diffused than is commonly supposed.[482] But these recluse societies made no visible impression upon the general state of religion. If it were not for the evident anxiety felt by many writers of the period to expose and counteract the dangers of a mystical and enthusiastical bias, it might have been supposed that there never was a time when the Church was so entirely free from any possible peril in that direction. Their fear, however, was not without some foundation. When an important phase of spiritual truth is comparatively neglected by established authorities and in orthodox opinion, it is sure to find full vent in another less regular channel. We are told that in the first years of the century, the Quakers had immensely increased. 'They swarm,' said Leslie, 'over these three nations, and they stock our plantations abroad.'[483] Quakerism had met with little tolerance in the previous century. Churchmen and Dissenters had unanimously denounced it, and Baxter, large-minded as he often proved himself, denied its adherents all hope of salvation. But the sect throve under persecution; and; in proportion as its follies and extravagances became somewhat mitigated, the spirituality of belief, which even in its most exaggerated forms had always been its soul of strength, became more and more attractive to those who felt its deficiency elsewhere. Between the passing of the Toleration Act and the end of William III.'s reign it made great progress. After that it began gradually to decline. This was owing to various causes. Some share in it may perhaps be attributed to the continued effects of the general religious lethargy which had set in some years before, but may have now begun to spread more visibly among the classes from which Quakerism was chiefly recruited. Again, its intellectual weakness would naturally become more apparent in proportion to the daily increasing attention paid to the reasonable aspects of faith. The general satisfaction felt, except by the pronounced High Church and Jacobite party, at the newly established order in Church and State, was unfavourable to the further progress of a communion which, from its rejection of ideas common to every other ecclesiastical body, seemed to many to be rightly called 'the end and centre of all confusion.'[484] It may be added that, as the century advanced, there gradually came to be within the confines of the National Church a little more room than had lately existed for the upholders of various mystical tenets. With the rise of Wesleyanism enthusiasm found full scope in a new direction. But the power of Quakerism was not only silently undermined by the various action of influences such as these. In the first years of the century it received a direct and serious blow in the able exposure of its extravagances written by Leslie. The vagaries of the French 'Prophets' also contributed to discredit the assumption of supernatural gifts in which many Quakers still indulged.

It is needless to dwell with Leslie on the wild heretical opinions into which the over-strained spirituality of the disciples of Fox and Penn had led them. Certainly, the interval between them and other Christian communities had sometimes been so wide that there was some justification for the assertions made on either side, that the name of Christian could not be so widely extended as to be fitly applied to both. Archbishop Dawes, for example, in the House of Lords, roundly refused them all claim to the title; and there were thousands of Quakers who would retaliate the charge in terms of the most unsparing vigour. To these men, all the Gospel was summed up in the one verse that tells how Christ is the light that lighteth every man that cometh into the world. Leslie was able to produce quotations in plenty from acknowledged authorities among them which allegorised away all belief in a personal Saviour, and which bade each man seek within himself alone for the illuminating presence of his Christ and God.