Lecture III
These ideas are of course always such that, if you apply to them what is familiar to you from ordinary science, then you will not keep up. You have to get involved with the ideas that are given. But you can always get involved with ideas using common sense. Ideas could come from the most unknown worlds; if they are there, one can engage with them. If only the experiences from the corresponding worlds are really brought into such comprehensible ideas, then one can engage with them. But one must rise to that, for which one does not need occult training: to grasping ideas.
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