It hardly falls within my task to attempt to determine what these visions really are. The subject is one upon which psychological and medical science may some day throw more light. But this much I must say, to make my own position clear: I regard these experiences as neither more nor less "supernatural" than other mental phenomena. Many of them are certainly pathological;[28] about others we may feel doubts; but some have every right to be considered as real irradiations of the soul from the light that "for ever shines," real notes of the harmony that "is in immortal souls." In illustration of this, we may appeal to three places in the Bible where revelations of the profoundest truths concerning the nature and counsels of God are recorded to have been made during ecstatic visions. Moses at Mount Horeb heard, during the vision of the burning bush, a proclamation of God as the "I am"—the Eternal who is exalted above time. Isaiah, in the words "Holy, Holy, Holy," perceived dimly the mystery of the Trinity. And St. Peter, in the vision of the sheet, learned that God is no respecter of persons or of nationalities. In such cases the highest intuitions or revelations, which the soul can in its best moments just receive, but cannot yet grasp or account for, make a language for themselves, as it were, and claim the sanction of external authority, until the mind is elevated so far as to feel the authority not less Divine, but no longer external. We may find fairly close analogies in other forms of that "Divine madness," which Plato says is "the source of the chiefest blessings granted to men"—such as the rapture of the poet, or (as Plato adds) of the lover.[29] And even the philosopher or man of science may be surprised into some such state by a sudden realisation of the sublimity of his subject. So at least Lacordaire believed when he wrote, "All at once, as if by chance, the hair stands up, the breath is caught, the skin contracts, and a cold sword pierces to the very soul. It is the sublime which has manifested itself![30]" Even in cases where there is evident hallucination, e.g. when the visionary sees an angel or devil sitting on his book, or feels an arrow thrust into his heart, there need be no insanity. In periods when it is commonly believed that such things may and do happen, the imagination, instead of being corrected by experience, is misled by it. Those who honestly expect to see miracles will generally see them, without detriment either to their truthfulness or sanity in other matters.
The mystic, then, is not, as such, a visionary; nor has he any interest in appealing to a faculty "above reason," if reason is used in its proper sense, as the logic of the whole personality. The desire to find for our highest intuitions an authority wholly external to reason and independent of it—a "purely supernatural" revelation—has, as Récéjac says, "been the cause of the longest and the most dangerous of the aberrations from which Mysticism has suffered." This kind of supernaturalism is destructive of unity in our ideas of God, the world, and ourselves; and it casts a slur on the faculties which are the appointed organs of communication between God and man. A revelation absolutely transcending reason is an absurdity: no such revelation could ever be made. In the striking phrase of Macarius, "the human mind is the throne of the Godhead." The supremacy of the reason is the favourite theme of the Cambridge Platonists, two of whom, Whichcote and Culverwel, are never tired of quoting the text, "The spirit of man is the candle of the Lord." "Sir, I oppose not rational to spiritual," writes Whichcote to Tuckney, "for spiritual is most rational." And again, "Reason is the Divine governor of man's life: it is the very voice of God.[31]" What we can and must transcend, if we would make any progress in Divine knowledge, is not reason, but that shallow rationalism which regards the data on which we can reason as a fixed quantity, known to all, and which bases itself on a formal logic, utterly unsuited to a spiritual view of things. Language can only furnish us with poor, misleading, and wholly inadequate images of spiritual facts; it supplies us with abstractions and metaphors, which do not really represent what we know or believe about God and human personality. St. Paul calls attention to this inadequacy by a series of formal contradictions: "I live, yet not I"; "dying, and behold we live"; "when I am weak, then I am strong," and so forth; and we find exactly the same expedient in Plotinus, who is very fond of thus showing his contempt for the logic of identity. When, therefore, Harnack says that "Mysticism is nothing else than rationalism applied to a sphere above reason," he would have done better to say that it is "reason applied to a sphere above rationalism.[32]"
For Reason is still "king.[33]" Religion must not be a matter of feeling only. St. John's command to "try every spirit" condemns all attempts to make emotion or inspiration independent of reason. Those who thus blindly follow the inner light find it no "candle of the Lord," but an ignis fatuus; and the great mystics are well aware of this. The fact is that the tendency to separate and half personify the different faculties—intellect, will, feeling—is a mischievous one. Our object should be so to unify our personality, that our eye may be single, and our whole body full of light.
We have considered briefly the three stages of the mystic's upward path. The scheme of life therein set forth was no doubt determined empirically, and there is nothing to prevent the simplest and most unlettered saint from framing his conduct on these principles. Many of the mediæval mystics had no taste for speculation or philosophy;[34] they accepted on authority the entire body of Church dogma, and devoted their whole attention to the perfecting of the spiritual life in the knowledge and love of God. But this cannot be said of the leaders. Christian Mysticism appears in history largely as an intellectual movement, the foster-child of Platonic idealism; and if ever, for a time, it forgot its early history, men were soon found to bring it back to "its old loving nurse the Platonic philosophy." It will be my task, in the third and fourth Lectures of this course, to show how speculative Christian Mysticism grew out of Neoplatonism; but we shall not be allowed to forget the Platonists even in the later Lectures. "The fire still burns on the altars of Plotinus," as Eunapius said.
Mysticism is not itself a philosophy, any more than it is itself a religion. On its intellectual side it has been called "formless speculation.[35]" But until speculations or intuitions have entered into the forms of our thought, they are not current coin even for the thinker. The part played by Mysticism in philosophy is parallel to the part played by it in religion. As in religion it appears in revolt against dry formalism and cold rationalism, so in philosophy it takes the field against materialism and scepticism.[36] It is thus possible to speak of speculative Mysticism, and even to indicate certain idealistic lines of thought, which may without entire falsity be called the philosophy of Mysticism. In this introductory Lecture I can, of course, only hint at these in the barest and most summary manner. And it must be remembered that I have undertaken to-day to delineate the general characteristics of Mysticism, not of Christian Mysticism. I am trying, moreover, in this Lecture to confine myself to those developments which I consider normal and genuine, excluding the numerous aberrant types which we shall encounter in the course of our survey.
The real world, according to thinkers of this school, is created by the thought and will of God, and exists in His mind. It is therefore spiritual, and above space and time, which are only the forms under which reality is set out as a process.
When we try to represent to our minds the highest reality, the spiritual world, as distinguished from the world of appearance, we are obliged to form images; and we can hardly avoid choosing one of the following three images. We may regard the spiritual world as endless duration opposed to transitoriness, as infinite extension opposed to limitation in space, or as substance opposed to shadow. All these are, strictly