I. Natural Science and Its Boundaries

As little as a living being who has reached a certain stage of development—a certain age, let us say—can be made young again in every respect, as little can a form of spiritual life be made young again when it has reached old age. Out of the religious creeds of the West, which are descendants of the primeval wisdom of the East, nothing can be produced that would again be capable of satisfying Western humanity when this humanity advances beyond the knowledge acquired during the past three or four centuries from the science and observation of Nature. Scepticism on an ever-increasing scale is bound to develop. And anyone who has insight into the process of world-evolution can say with assurance that a trend of development from East to West is heading in this direction. In other words, there is moving from East to West a stream of spiritual life that must inevitably lead to scepticism in a more and more pronounced form when it is received into souls who are being imbued more deeply all the time with the fruits of Western civilisation. Scepticism is simply the outcome of the march of spiritual life from the East to the West, and it must be confronted by a different stream flowing henceforward from the West to the East. We ourselves are living at the point where this spiritual stream crosses the other, and in the further course of these studies we shall see in what sense this is so.