The teachings given out by the higher spiritualism are not received by the low-grade séance method, but by what can be described as "inspiration." This is a phenomenon which is found among the mystics, too. But investigation of mysticism shows that although the experience itself was genuine enough, its fruits in revelation and communication were usually coloured by the medium (in the higher and not in the spiritualistic sense) through which it had to manifest on our plane. That is, the personality of the man through whom the teaching was given, the complexes which governed his attitude, often unconsciously, the degree of inner development, and the width of outer experience which he possessed--all these contributed to shaping the message.
-- Notebooks Category 16: The Sensitives > Chapter 9: Inspiration and Confusion > # 43