The Enhancement of Human Cognitive Ability to Imagination, Inspiration and Intuition
If this were not the case, you would have to assume that during sleep you have a mantle of warmth around you that keeps the heat out. You would have to think that a good spirit is plugging your ears so that the processes that are otherwise caused from the outside are not brought about. When you think of all this, you will come to say to yourself: Well, the eye is so sensitive that the human organism has adapted itself to use its will to hang the curtains of the eyelids over the eyes during sleep.
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