When I have a problem, and it’s proving difficult to solve, I’ll often go on a walk about it, go talk to a friend about it, go try to solve it again. But when it’s proving intransigent, I’ll go write an essay proving why it just cannot be solved. That almost always fixes it.
When used properly, metaphors enhance speech. But correctly dosing the metaphorical spice in the dish of language is no easy task. They ‘must not be far-fetched, or they will be difficult to grasp, nor obvious, or they will have no effect’, as Aristotle already noted nearly 2,500 years ago.