XVIII. Spiritual Science and the Spiritual Goals of Our Time
Thus I have presented some of the truths of this spiritual research. It now remains for me to show how the spiritual researcher arrives at these truths, that is, how the spiritual world is investigated and researched. One must not believe that this spiritual world can be investigated with the senses that we can apply to the sensory world. It is a spiritual world precisely because it cannot be perceived by the senses. It is necessary for the study of this spiritual world that man himself should make himself the instrument of investigation. All other sciences have their external instruments. Spiritual research has as its only instrument the human organism itself, which is, however, the most wonderful instrument we can find on earth. But this organism must undergo a certain transformation if it is to acquire, to use a phrase from Goethe, “spiritual eyes and ears” in order to see what is always around us in spiritual form, but which cannot be seen unless a spiritual eye and spiritual ear are developed in the human soul, which would otherwise remain dormant.