Resistances are set up by the average mystic simply because of his metaphysical ignorance. He is somewhat like a person who has never studied the theory of music nor learned to read a musical manuscript but who can play two or three tunes on a violin solely by ear. The comprehension of what he is doing during meditation is missing. The ability to play any tune whatsoever and not merely two or three is lacking.
-- Notebooks Category 16: The Sensitives > Chapter 2: Phases of Mystical Development > # 154