But the less human existence in general immediately includes genuine work, the more indispensable is it that there should be firmly rooted tendencies to such work in the basis of our being, and that these tendencies should be developed to greater clearness of form and to greater effect in the work of universal history. So that our work may not be split up and destroyed, we need definite syntheses that establish a structure of life. On the one hand we must accomplish an analysis into individual tendencies and departments of life which, operating independently, generate life; and on the other hand we must find a unity of endeavour among these tendencies and departments; a movement from one to another; a common activity directed towards the building up of a new world. These syntheses must be an immediate experience at each point; they must be involved in all division of work; everywhere set distinctive tasks; produce characteristic achievements; and in energetic organisation of existence elevate it to the level of a characteristic system of life, full of power, which presses forward to further development. Only thus could a movement originate which might expand to a real whole and be capable of establishing this whole against the world as it is for immediate experience; only thus could humanity defend itself against the power of the environment and of destiny. Experience alone can decide whether our life contains such syntheses, and whether by means of them it forms a whole: the movement of universal history shows that there are such syntheses. The natures of these syntheses give to the chief epochs of culture their distinctive characters, by which the natures of their elements and of the relations between them are determined; and man acquires a definite relation to the world and can make a judgment upon it. Such a synthesis, with its life-penetrating and life-forming power, certainly contains some truth; it is not a product of narrowly human reflection and imagination. The course of time and the changes of history, therefore, cannot simply break it down completely; rather with the truth that it contains such a synthesis elevates life above time into the eternal. But it has not been demonstrated that life is capable of only one synthesis, or that it may not produce a variety of such: life does not necessarily realise its unity in simply establishing a single synthesis; it can seek unity in the supremacy of a chief synthesis above others. That experience in our own sphere of culture shows the latter to be the case we intend to indicate in a few lines.