The Glimpse will be at its best when his ego is not present to interfere with it. Such interference can not only come from its misinterpretations and distortions, against which philosophy so constantly warns its disciples, but also from the self-consciousness which wants him to notice how the experience is happening, to analyse what effect it is having, and to observe the reactions of other people to it. All these may be done but not then, not at the same time as the glimpse itself. Instead, they may be studied afterwards, when his consciousness has resumed its ordinary state. During the glimpse, he must let himself be completely surrendered to it.
-- Notebooks Category 22: Inspiration and the Overself > Chapter 5: Preparing for Glimpses > # 165
-- Perspectives > Chapter 22: Inspiration and the Overself > # 75