III. What is Mysticism?
It is true that by developing his soul man attains not only to his own inner being but to the spiritual kingdoms which underlie the outer world. But he must take in full earnest the work of transcending himself, and this must not be confused with a mere brooding within himself just as he is. He must take seriously the words of Angelus Silesius, both the first line and the second. We fail to do this if we withdraw from any aspect of the divine revelation; we let God hold sway only if we are able to sacrifice our inner being to all that can flow into us as revelation from the outer world. If we bring this way of thinking into relation with our spiritual-scientific cognition, we shall be taking the second line in the right sense. We let the divine-spiritual ground of the outer and inner worlds hold sway in us, and only then can we hope that we shall be “on Heaven's way.” This means that we shall come to a spiritual realm which is coloured neither by our own inner world nor by the outer world—a realm which has the same ground as the infinite world of stars shining in on us, as the atmosphere which envelops the earth, as the green plant-cover, as the rivers flowing into the sea; while the same divine-spiritual element lives in our thinking, feeling and willing and permeates our inner and outer worlds.