Now, however much I may have studied the human imagination, I have never doubted that even highly imaginative things, like poetry and religion, express real events, if not in the outer world, at least in the inner growth or discipline of life. Like the daily experience of the senses and like the ideas of science, they form a human language, all the terms of which are poetical and its images dream-images, but which symbolizes things and events beyond it and is controlled from outside. This would be perfectly evident to any other animal who should discover how men see the world or what they think of it: why should we be less intelligent than any other animal would be about ourselves? Enlightenment consists in coming nearer and nearer to the natural objects that lend a practical meaning to our mental discourse; and when the material significance of our dreams is thus discovered, we are lost in admiration at the originality, humour, and pictorial grandeur of the imagery in which our experience comes to us, as we might be at the decorative marvels of tapestry or of stained glass: but now without illusion. For we can now discriminate the rhythms and colour proper to our mental atmosphere from the extrinsic value of discourse as a sign for things and events beyond it. These external things and events make up what we call nature. It is nature, or some part of nature, or some movement of nature occurring within us or affecting us, that is the true existent object of religion, of science, and of love. The rest is a mere image.

My naturalism is sometimes taxed with being dogmatic, and if I were anxious to avoid that reproach, I might easily reduce my naturalism to a definition and say that if experience has any sources whatever, the sum and system of these sources shall be called nature. I know what speculative difficulties cluster about the notion of cause, which in one sense is quite unnecessary to science; but so long as time, process, and derivation are admitted at all, events may be traced back to earlier events which were their sources; and this universal flax of events will be called nature. Any existing persons, and any gods exercising power, will evidently be parts of nature. But I am not concerned to avoid dogmatism on such a point. Every assertion about existence is hazarded, it rests on animal faith, not on logical proof; and every argument to support naturalism, or to rebut it, implies naturalism. To deny that there are any facts (if scepticism can be carried so far) is still to dogmatize, no less than it would be to point to some fact in particular; in either case we descend into the arena of existence, which may betray our confidence. Any fact is an existence which discourse plays about and regards, but does not create. It is the essence of the practical intellect to prophesy about nature, and we must all do it As to the truth of our prophecy, that is always problematical, because nature is whatever nature happens to be; and as to our knowledge, starting as it does from a single point, the present position of the thinker, and falling away rapidly in dearness and certainty as the perspective recedes, it cannot pretend to draw the outlines of nature a priori: yet our knowledge of nature, in our neighbourhood and moral climate, is very considerable, since every known fact is a part of nature. It is quite idle to deny, for instance, that human life depends on cosmic and hygienic influences; or that in the end all human operations must run back somehow to the rotation of the earth, to the rays of the sun, to the moisture and fructification of the soil, to the ferment there of vegetative and dreaming spirits, quickened in animals endowed with locomotion into knowledge of surrounding things: whence the passionate imaginations which we find in ourselves. I know that things might have been arranged otherwise; and some of those alternative worlds may be minutely thought out in myth or in philosophy, in obedience to some dialectical or moral impulse of the human mind; but that all those other worlds are figments of fancy, interesting as poetry is interesting, and that only the natural world, the world of medicine and commerce, is actual, is obvious; so obvious to every man in his sane moments, that I have always thought it idle to argue the point. Argument is not persuasive to madmen; but they can be won over by gentler courses to a gradual docility to the truth. One of these gentler courses is this: to remember that madness is human, that dreams have their springs in the depths of human nature and of human experience; and that the illusion they cause may be kindly and even gloriously dispelled by showing what the solid truth was which they expressed allegorically. Why should one be angry with dreams, with myth, with allegory, with madness? We must not kill the mind, as some rationalists do, in trying to cure it. The life of reason, as I conceive it, is simply the dreaming mind becoming coherent, devising symbols and methods, such as languages, by which it may fitly survey its own career, and the forces of nature on which that career depends. Reason thereby raises our vegetative dream into a poetic revelation and transcript of the truth. That all this life of expression grows up in animals living in the material world is the deliverance of reason itself, in our lucid moments; but my books, being descriptive of the imagination and having perhaps some touches of imagination in them, may not seem to have expressed my lucid moments alone. They were, however, intended to do so; and I ought to have warned my readers more often that such was the case.

I have no metaphysics, and in that sense I am no philosopher, but a poor ignoramus trusting what he hears from the men of science. I rely on them to discover gradually exactly which elements in their description of nature may be literally true, and which merely symbolical: even if they were all symbolical, they would be true enough for me. My naturalism is not at all afraid of the latest theories of space, time, or matter: what I understand of them, I like, and am ready to believe, for I am a follower of Plato in his doctrine that only knowledge of ideas (if we call it knowledge) can be literal and exact, whilst practical knowledge is necessarily mythical in form, precisely because its object exists and is external to us. An arbitrary sign, indication, or name can point to something unambiguously, without at all fathoming its nature, and therefore can be knowledge of fact: which an aesthetic or logical elucidation of ideas can never be. Every idea of sense or science is a summary sign, on a different plane and scale altogether from the diffuse material facts which it covers: one unexampled colour for many rays, one indescribable note for many vibrations, one picture for many particles of paint, one word for a series of noises or letters. A word is a very Platonic thing: you cannot say when it begins, when it ends, how long it lasts, nor where it ever is; and yet it is the only unit you mean to utter, or normally hear. Platonism is the intuition of essences in the presence of things, in order to describe them: it is mind itself.

I am quite happy in this human ignorance mitigated by pictures, for it yields practical security and poetic beauty: what more can a sane man want? In this respect I think sometimes I am the only philosopher living: I am resigned to being a mind. I have put my hand into the hand of nature, and a thrill of sympathy has passed from her into my very heart, so that I can instinctively see all things, and see myself, from her point of view: a sympathy which emboldens me often to say to her, "Mother, tell me a story." Not the fair Sheherazad herself knew half the marvellous tales that nature spins in the brains of her children. But I must not let go her hand in my wonder, or I might be bewitched and lost in the maze of her inventions.

A workman must not quarrel with his tools, nor the mind with ideas; and I have little patience with those philanthropists who hate everything human, and would reform away everything that men love or can love. Yet if we dwell too lovingly on the human quality and poetic play of ideas, we may forget that they are primarily signs. The practical intellect is always on the watch for ambient existences, in order to fight or to swallow them: and if by chance its attention is arrested at an idea, it will instinctively raise that idea to the throne of power which should be occupied only by the thing which it stands for and poetically describes. Ideas lend themselves to idolatry. There is a continual incidental deception into which we are betrayed by the fictitious and symbolical terms of our knowledge, in that we suppose these terms to form the whole essence of their objects. I think I have never failed to point out this danger of illusion, and to protest against idolatry in thought, so much more frequent and dangerous than the worship of stocks and stones; but at the same time, as such idolatry is almost inevitable, and as the fictions so deified often cover some true force or harmony in nature, I have sometimes been tempted in my heart to condone this illusion. In my youth it seemed as if a scientific philosophy was unattainable; human life, I thought, was at best a dream, and if we were not the dupes of one error, we should be the dupes of another; and whilst of course the critic must make this mental reservation in all his assents, it was perhaps too much to ask mankind to do so; so that in practice we were condemned to overlook the deceptiveness of fable, because there would be less beauty and no more truth in whatever theory might take its place. I think now that this despair of finding a scientific philosophy was premature, and that the near future may actually produce one: not that its terms will be less human and symbolical than those to which we are accustomed, but that they may hug more closely the true movement and the calculable order of nature. The truth, though it must be expressed in language, is not for that reason a form of error. No doubt the popularizers of science will turn its language into a revelation, and its images into idols; but the abstract character of these symbols will render it easier for the judicious to preserve the distinction between the things to be described and the science which describes them.

Was it, I wonder, this touch of sympathy with splendid error, bred in me by long familiarity with religion and philosophy, that offended my honest critics? Now that I show less sympathy with it, will they be better satisfied? I fear the opposite is the case. What they resented was rather that in spite of all my sympathy, and of all my despair about science, it never occurred to me to think those errors true, because they were splendid, except true to the soul. Did they expect that I should seriously debate whether the Ghost in Hamlet really came out of Purgatorial fires, and whether Athena really descended in her chariot from Olympus and pulled Achilles by his yellow hair when he was in danger of doing something rash? Frankly, I have assumed—perhaps prematurely—that such questions are settled. I am not able nor willing to write a system of magic cosmology, nor to propose a new religion. I merely endeavour to interpret, as sympathetically and imaginatively as I can, the religion and poetry already familiar to us; and I interpret them, of course, on their better side, not as childish science, but as subtle creations of hope, tenderness, and ignorance.

So anxious was I, when younger, to find some rational justification for poetry and religion, and to show that their magic was significant of true facts, that I insisted too much, as I now think, on the need of relevance to fact even in poetry. Not only did I distinguish good religion from bad by its expression of practical wisdom, and of the moral discipline that makes for happiness in this world, but I maintained that the noblest poetry also must express the moral burden of life and must be rich in wisdom. Age has made me less exacting, and I can now find quite sufficient perfection in poetry, like that of the Chinese and Arabians, without much philosophic scope, in mere grace and feeling and music and cloud-castles and frolic. I assumed formerly that an idea could have depth and richness only if somehow redolent of former experiences of an overt kind. I had been taught to assign no substance to the mind, but to conceive it as a system of successive ideas, the later ones mingling with a survival of the earlier, and forming a cumulative experience, like a swelling musical movement. Now, without ceasing to conceive mental discourse in that way, I have learned, with the younger generation, to rely more on the substructure, on the material and psychical machinery that puts this conscious show on the stage, and pulls the wires. Not that I ever denied or really doubted that this substructure existed, but that I thought it a more prudent and critical method in philosophy not to assume it. Certainly it is a vast assumption; but I see now an irony in scepticism which I did not see when I was more fervid a sceptic; namely, that in addressing anybody, or even myself, I have already made that assumption; and that if I tried to rescind it, I should only be making another, no less gratuitous, and far more extravagant; I should be assuming that the need of making this assumption was a fatal illusion, rather than a natural revelation of the existence of an environment to a living animal. This environment has been called the unknowable, the unconscious and the subconscious—egotistical and absurd names for it, as if its essence was the difficulty we have in approaching it. Its proper names are matter, substance, nature, or soul; and I hope people will learn again to call it by those old names. When living substance is thus restored beneath the surface of experience, there is no longer any reason for assuming that the first song of a bird may not be infinitely rich and as deep as heaven, if it utters the vital impulses of that moment with enough completeness. The analogies of this utterance with other events, or its outlying suggestions, whilst they may render it more intelligible to a third person, would not add much to its inward force and intrinsic beauty. Its lyric adequacy, though of course not independent of nature, would be independent of wisdom. If besides being an adequate expression of the soul, the song expressed the lessons of a broad experience, which that soul had gathered and digested, this fact certainly would lend a great tragic sublimity to that song; but to be poetical or religious intrinsically, the mystic cry is enough.

I notice that men of the world, when they dip into my books, find them consistent, almost oppressively consistent, and to the ladies everything is crystal—clear; yet the philosophers say that it is lazy and self-indulgent of me not to tell them plainly what I think, if I know myself what it is. Because I describe madness sympathetically, because I lose myself in the dreaming mind, and see the world from that transcendental point of vantage, while at the same time interpreting that dream by its presumable motives and by its moral tendencies, these quick and intense reasoners suppose that I am vacillating in my own opinions. My own opinions are a minor matter, and there was usually no need, for the task in hand, that I should put them forward; yet as a matter of fact, since I reached the age of manhood, they have not changed. In my adolescence I thought this earthly life (not unintelligibly, considering what I had then seen and heard of it) a most hideous thing, and I was not disinclined to dismiss it as an illusion, for which perhaps the Catholic epic might be substituted to advantage, as conforming better to the impulses of the soul; and later I liked to regard all systems as alternative illusions for the solipsist; but neither solipsism nor Catholicism were ever anything to me but theoretic poses or possibilities; vistas for the imagination, never convictions. I was well aware, as I am still, that any such vista may be taken for true, because all dreams are persuasive while they last; and I have not lost, nor do I wish to lose, a certain facility and pleasure in taking those points of view at will, and speaking those philosophical languages. But though as a child I regretted the fact and now I hugely enjoy it, I have never been able to elude the recurring, invincible, and ironic conviction that whenever I or any other person feign to be living in any of those non-natural worlds, we are simply dreaming awake.

In general, I think my critics attribute to me more illusions than I have. My dogmatism may be a fault of temper or manner, because I dislike to stop to qualify or to explain everything; but in principle it is raised more diffidently and on a deeper scepticism than most of the systems which are called critical. My "essences," for instance, are blamed for being gratuitous inventions or needless abstractions. But essences appear precisely when all inventions are rescinded and the irreducible manifest datum is disclosed. I do not ask any one to believe in essences. I ask them to reject every belief, and what they will have on their hands, if they do so, will be some essence. And if, believing nothing, they could infinitely enlarge their imagination, the whole realm of essence would loom before them. This realm is no discovery of mine; it has been described, for instance, by Leibniz in two different ways; once as the collection of all possible worlds, and again as the abyss of non-existence, le néant, of which he says: "The non-existent ... is infinite, it is eternal, it has a great many of the attributes of God; it contains an infinity of things, since all those things which do not exist at all are included in the non-existent, and those which no longer exist have returned to the non-existent." It suffices, therefore, that we deny a thing for us to recognize an essence, if we know at all what we are denying. And the essence before us, whether we assert or deny its existence, is certainly no abstraction; for there is no other datum, more individual or more obvious, from which the abstraction could be drawn. The difficulty in discerning essences is simply the very real difficulty which the practical intellect has in abstaining from belief, and from everywhere thinking it finds much more than is actually given.

Profound scepticism is favourable to conventions, because it doubts that the criticism of conventions is any truer than they are. Fervent believers look for some system of philosophy or religion that shall be literally true and worthy of superseding the current assumptions of daily life. I look for no such thing. Never for a moment can I bring myself to regard a human system—a piece of mental discourse—as more than a system of notation, sometimes picturesque, sometimes abstract and mathematical. Scientific symbols, terms in which calculation is possible, may replace poetic symbols, which merely catch echoes of the senses or make up dramatic units out of appearances in the gross. But the most accurate scientific system would still be only a method of description, and the actual facts would continue to rejoice in their own ways of being. The relevance and truth of science, like the relevance and truth of sense, are pragmatic, in that they mark the actual relations, march, and distribution of events, in the terms in which they enter our experience.