V. Can a method of gaining insight into spheres beyond the sense-perceptible world be given a scientific basis?

The science of the spirit calls for a degree of inner courage, of the will to have a change of heart, to consider something which addresses powers of soul that go deeper than we are used to in modern thinking. These powers will, however, fully meet the demands of modern science and do anything but take us into nebulous mysticism. If human beings learn truly to use the fully conscious thinking trained through modern science and enter into the world of which I have now been speaking, a world that is alive and active beneath the world of dreams, they will find it possible to gain a view—not a concept, but a view—of the will, free will. One must have wrestled with the problem of free will—I have shown this in my Philosophy of Spiritual Activity—and have been looking for immediate living experience of the way that hides so mysteriously behind a sphere in our inner life into which our thinking is quite evidently unable to penetrate. Having wrestled with this, you also find the way to a vision of free will. You then find the way into the world of the spirit. For the fully conscious thinking of which we speak in the science of the spirit makes it possible not to weave those childlike, erroneous images, making them into dreams that cover up an unknown reality. This thinking enters into the spiritual reality, the world of images, that lies beneath.