Rudolf Steiner - An Outline of Occult Science
Now, fifteen years after the first edition of this book, I may well be allowed to say something publicly about the state of soul out of which it arose. Originally, it was my plan to add its essential content as final chapters to my book Theosophy, which had been published previously. This proved to be impossible. At the time of the publication of Theosophy the subject matter of Occult Science did not yet live in me in its final form as was the case with Theosophy. In my imaginative perceptions the spiritual nature of individual man stood before my soul and I was able to describe it; the cosmic relationships, however, which had to be presented in Occult Science did not yet live in my consciousness in the same way. I perceived details, but not the complete picture.