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It is an error, and one commonly made, to confound occult phenomena with spiritual experience. It is true that, at certain times or in certain phases of the inner life, the two may accompany one another. But they do not do so on equal levels. Spiritual experience certifies itself but psychic experience proves little because it is always open to doubt. A philosopher may be and often is a psychic, but few psychics are ever philosophers. We do not need to be purified to witness occult phenomena, and therein lies their danger.
-- Notebooks Category 16: The Sensitives > Chapter 3 : Philosophy, Mysticism, and The Occult > # 80