The experiences which may be read about in books and which are so confusing are not all on the same level. The chief cause of this confusion lies in the failure to separate the intellectual from the truly spiritual in the descriptions. Under the former heading come most of the occurrences. They are mostly projections of the seer's ego and reveal what he is most familiar with, what he believes in, what he expects, and so on. Few seers have a scientific outlook and most mix together the essential with the incidental quite indiscriminately.
-- Notebooks Category 16: The Sensitives > Chapter 14: The Sensitive Mind > # 116