The true mystic values inward experience out of all proportion to the theories about it. This is at once a virtue and a defect. Virtue, because the inward is the reality and the intellectual its shadow. Defect, because the path to it and the manifestation of it are so subtle that without a sound rational conception of mystical practice and an accurate metaphysical conception of mystical attainments, it is immeasurably easy to go astray from the one or to distort the other.
-- Notebooks Category 16: The Sensitives > Chapter 2: Phases of Mystical Development > # 198