Job 33: he speaks to man in a dream, in a vision of the night, 'and there He will open the ears of men and frighten them with warnings'. The nightmare is a rearrangement of the day's dreams: we see a thousand things in a day, often violent, and they are dramatised at night - not in chronological order, but as a whole - and if the purpose was faulty the drama terrifies. It is not punishment. The terror is shown to get a man to think more constructively during the day, to change his purpose and his deeds; if night after night the day comes back as something that frightens you, the question to ask is what you are doing that it should be so. The remedy is to rearrange the furnishing of the mind, so that the day dream is projected at night exactly as it was dreamed by day - as it was for Jacob with the spotted cattle.