It may be distressing to those who have full faith in the revelations of seers and ardent devotion for them to learn that these revelations may not always be what their receivers believe them to be, that they may not be sacred at all, but only human, or partly sacred and partly human. They may be even deceptive, mistaken, or imaginary. Those who know nothing of the controversies which agitate mystical circles may regret this statement but it would be easy to document it fully. But such remarks do not apply to philosophic insight, its personalities and tenets. Its entire approach and method are sufficiently protected against aberrations to avoid them. For philosophy insists on asking--and finding the answer to--the question: "What is it that seers attain during their highest meditation? Is it their own imagination, their own idea, or is it truth and reality?"
-- Notebooks Category 16: The Sensitives > Chapter 15 : Illuminations > # 150
