Note 90 — Chapter V

This physiological symbolism was clearly apprehended long ago by Hobbes: 'As anger causeth heat in some parts of the body when we are awake; so when we sleep the overheating of the same parts causeth anger, and raiseth up in the brain the imagination of an enemy. In the same manner as natural kindness, when we are awake, causeth desire and desire makes heat in certain other parts of the body; so also, too much heat in those parts, while we sleep, raiseth in the brain an imagination of some kindness shown. In sum, our dreams are the reverse of our waking imaginations; the motion, when we are awake, beginning at one end, and when we dream at another' (Leviathan, Part 1. ch. 2).