The question as to in which direction the spiritual life moves in man is implied through our whole investigation, and in it receives an answer. Nevertheless, it requires to be definitely stated and treated by itself, so that the distinctive character of the movement and its influence in the moulding of life may be fully acknowledged. It has become clearly evident to us that an independent and, therefore, genuine spiritual life cannot arise out of life in its usual condition, but only in opposition to this condition. For, however little this condition of life may lack spiritual elements, they are mixed and bound up with other elements far too much to be able to bind themselves immediately into a whole, and to display an independent power. That the spiritual life must and can gain a basis independent of this condition of life is the indispensable, fundamental idea of Idealism. But such attainment of independence of the usual condition would help little if the spiritual life which is based upon itself had not a particular nature of its own, and if from this it did not oppose everything alien and partly alien to itself. The doctrines of innate ideas, of an a priori, and so on, which have occupied humanity for thousands of years did not intend anything different from this. The details of the conception of these were indeed often open to criticism: it was sought to exhibit individual conceptions and propositions as existing complete at the beginning, where rather movements or tendencies are in question, which can find their realisation only within the work of life. Again, the a priori was limited to the intellectual sphere, whereas it is indispensable to all spiritual activity; for example, how can morality, rising above merely natural preservation and rejecting all mere utility, as it does, be conceived without such an a priori? To deny to spiritual life an original nature and power—an a priori in this more comprehensive sense—means nothing else than to eliminate that life as an independent factor, and to reduce it to the position of a secondary product. For without an original nature the spiritual life would be like soft wax that may be shaped in one form or another to suit our own pleasure: then the spiritual life could not possibly follow its own aims, could not possibly attain to an independence in the inner life, in which we recognised the characteristic nature of the inner life. As certain as it is that there is a spiritual life at all, so certainly does it bring certain fundamental tendencies and movements with it; as surely as it develops in particular directions—and that it does this we have seen—so surely is this a priori also differentiated. To trace this fundamental state of spiritual activity in all its relations and multiplicity is an especially important task of philosophic research.

The revelation of such an original fundamental activity of the spirit must induce us to undertake to form our whole world from this activity, and to produce from it or to transform into it that which exists over against activity as an independent realm of experience. This has been attempted for thousands of years with the summoning of an enormous amount of spiritual power and the arousing of a proud self-consciousness. But failure was inevitable because it was not recognised that the development of the spiritual life in man is conditioned. However certain it may be that original spiritual movements must be active within us, they are not so with organised content and overwhelming power from the beginning, but they acquire content and power only through the process of life itself, only in grappling with the oppositions of experience and in the appropriation of the tasks and stimuli which experience brings to them. The incompleteness and the mutability of what was accepted earlier as a fixed and unchangeable racial possession of the spiritual life is to-day quite clearly perceived. What great changes morality, for example, has undergone in the course of the ages; how toilsomely has much been won which later ages have considered self-evident! To be sure, morality remains, even through all such changes, an original spiritual phenomenon, which can never be derived from an external source, but which could emerge and establish itself only as an inner necessity of the spiritual life in opposition to the realm of mere utility. But the actuality of this original phenomenon gives rise to a difficult problem, for the solution of which a closer contact with the environment, a fundamental arrangement with experience, is necessary. And so the problem is traced to a more ultimate source, and, though this makes the matter less simple, it gives a higher significance to our work and to the movement of history.

Even the fundamental forms of thought which are often accepted as of everything the most fixed share in this gradual amplification. Man, so far as he participates in spiritual impulse, thinks, of course, in conceptions; he gives to appearances fixed points of support by the establishing of things, and relates events causally. But all this is full of problems and is comprehended only in its upward endeavour; it raises more problems than it solves; and around the solution of these the whole work of science moves. What different things the “idea” meant to Plato and to Kant, and to ancient and to modern thought generally: how every thinker of moment has given a particular conception of substance and of causality; how whole epochs have exhibited their particular nature in the treatment of these problems!

For the sake of its own perfection, therefore, the spiritual life must continually turn back to the realm of experience, from which, at first, it tore itself free. Attempts to evolve the whole life from that a priori have always given as a result something of a bloodless nature, abstract in the highest degree, a mere web of formulæ, in so far as experience, which had been relegated to the background, has not indirectly asserted its right again, and infused the formulæ with life. Accordingly, our life does not spend itself in one direction, but bears within it the counter-tendencies of a tearing oneself free from the world of sense and a returning back to it, of a detachment from it and an appropriation of it to oneself. But, in this, independent life and bound life do not become combined; how could that be the case without the loss of all inner unity? A basis is necessary; and it is furnished only by self-determining activity. Experience acquires a spiritual content and value only so far as it is based upon this activity, and is taken up into a spiritual movement. Experience does not share something with the spiritual life, but, through stimulation and opposition, it forces that life to further development within itself. The state in which the world of sense is first found undergoes an inner elevation in that appropriation: sense presentation, for example, is to scientific work something quite different from what it is to naïve perception; even if it obstinately withstands a complete resolution into magnitudes of pure thought, it takes up more and more thought elements; it enters into conceptual relations; it answers questions which the work of thought sets. To the whole sphere of sense science gives the background of a world of thought, and transforms mere sense into a spatially bound spirituality.

The same thing is valid with regard to the things of value in life; in these, also, sense and spirit are not simply combined; but something of sense becomes a spiritual good only so far as it serves the spiritual life in some way; it cannot do this, however, without itself undergoing a transformation. This is to be seen nowhere more clearly than in economics. Money and estate had at all times a value for self-preservation and enjoyment, but in the doctrine of economics and political economy they could obtain acknowledgment only after a power to advance the spiritual life had been recognised in them. As culture in the ancient world had not yet reached this point of view, it branded all endeavour after material wealth as inferior, and as far as possible checked such endeavour. Only since the Modern Age has recognised in money and estate an indispensable means of gaining control over the surrounding world and of increasing human power have they secured a place within the spiritual life, and as a result of this have become more highly estimated. At the same time, however, they have been changed inwardly in the process, since that which they achieve, not towards ostentatious display and enjoyment, but towards the increase of human power over things has become the chief matter.

As in this way the content and the value of that which is offered by the world of sense shows its dependence upon the condition of the spiritual life, so in science also a similar relation between experience and the spiritual life is found. Science appeals to experience with particular zeal, more especially after it has first accomplished far-reaching changes in its own thought constructions; only then does experience give anything new to knowledge and exhibit a greater depth. Experience can answer only in the measure in which it is questioned; the question, however, varies according to the stage of development of the spiritual life.

Such a view fully appreciates the significance of life-work, and must strive energetically to gain its acknowledgment. This work is not a carrying out of a complete scheme in a given condition of things, an application of firmly rooted principles to particular cases, but a self-realisation and self-perfecting of the spiritual life which builds up a self-conscious reality. In this our life is not divided between two different realms, but, in a comprehensive spiritual world, different stages of reality meet together, which must be brought into relation and developed. To be sure, the world of sense retains a certain independence; it resists a complete transformation into spiritual magnitudes, and our life, therefore, retains a certain restriction and impenetrability. But the self-consciousness of the spirit becomes more and more the chief basis and sphere of life: this self-consciousness continually takes up more into itself; it makes the world that was to us at first primary, indeed the only world, more and more secondary and subordinate.

This increasing spiritualisation of human life never becomes a sure possession that calls for no toil; ever anew it demands our attention and activity; it has continually to be won anew as a whole. As soon as the tension slackens, the world of experience with its appeal to sense preponderates, and it soon appears to be man’s sole world, one which cannot tolerate anything beyond itself. For the spiritualisation of human life, a longing rooted in the whole being is primarily necessary; for with the keen feeling of the vanity of the world of sense experience, this leads to the removal of the centre of life into the invisible world of self-determining activity. Further, a clear presentation of this invisible world is needed; and in this the help of the visible is not to be dispensed with. For its own establishment the realm of the invisible must borrow means of expression from the visible, which now governs human presentation; must transform and refine them for its aims; prepare out of them an impressive presentation of the whole. Along with the energy of turning to the spiritual life a creative imagination is required, through which the invisible may become equal to holding its own against the visible.

The help of such imagination is indispensable for religion, in order that the supernatural world advocated by it may gain an effective presence in the province of humanity. And so with bold upward flights of imagination the heroes of religion have projected a new condition of reality as a whole, a kingdom of justice or of love, and have judged human existence by the standard of this new condition. Similarly, philosophy did not become an independent world of thought without the help of imagination; and of how indispensable it is to art we need not speak at all. Again, work in political, social, educational matters, at least as far as radical renewals are concerned, has really been taken up and carried on, and has won a triumphant power, only where the state striven for has been presented as something visible and clearly present; this alone has united the multiplicity, and has led with compelling force beyond the extant situation as though that were something intolerable. Humanity as a whole must be present in an ideal condition to our minds for us to be aroused sufficiently from our indolence.

Our life, therefore, contains movements which tend in opposite directions: there are a pressing forward and a turning backward, a detachment from experience and a taking up again of experience; and so we may well speak of an action and reaction within its movement. But the antitheses that arise aid in advancement only so long as they are encompassed by a whole of activity. In that the course of history increases far more than it diminishes the antitheses, the dangers grow more and more, the possibilities and the tasks of human existence, however, also grow.