Paths to Knowledge of Higher Worlds

You see, what an anthroposophical investigator of spiritual science has to say, cannot, as it were, be transmitted day by day in the form of lectures, in the same way in which natural-scientific facts are generally advanced. Scientific facts can be remembered, they live in our memory and can be set forth with the aid of memory. But the facts which a spiritual-scientific investigator has to advance, must come from his inner living experience. He cannot prepare himself in the same way in which one generally prepares lectures based on memory. The only thing he can do is to reconstruct the conditions enabling him to experience the most elementary facts of spiritual science.