'The cognitive linguists George Lakoff and Mark Johnson have argued that metaphor is much more than a niche literary device. ‘Metaphor plays a significant role in determining what is real for us,’ they wrote in their classic study Metaphors We Live By. ‘Rather than simply giving us a way to conceptualise a pre-existing reality, new metaphors have the power to create new realities. This begins to happen when we comprehend the world in terms of a metaphor, and it becomes a deeper reality when we start to act in terms of it’.' (Introduction)