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I have a dream

Fantasies created while we sleep can help treat mental disorders

By Philip Hunter   August 2009

You are dreaming that a hippo is charging towards a lake, and you are caught between the two, about to be trampled to death with no avenue of escape. Then all of a sudden you realise this is just a dream, turn around and the hippo stops in its tracks, turning into a gently grazing horse.

This phenomenon is known as lucid dreaming: we are aware that we are in a dream and may have some control over its course. It has been thought to provide a link between reason and emotion, or even spirituality. Indeed it appears that in…

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