In Levels of Life, Julian Barnes creates an extended metaphor between the trials of hot-air ballooning and the experience of love found and lost. In one example he writes:
Grief is vertical and vertiginous while mourning is horizontal. Grief makes your stomach turn, snatches the breath from you, cuts off the blood supply to the brain; mourning blows you in a new direction. But since you are now in enveloping cloud, it is impossible to tell if you are marooned or deceptively in motion. You are a first-time aeronaut, alone beneath the gasbag, equipped with a few kilos of ballast, and told that this item in your hand you've never seen before is the valve-line.
From Greek mythology, to Shakespeare, to Star Wars, metaphors have been used throughout history, arguably as one of language's most powerful and descriptive tools.
According to Merriam-Webster, a metaphor is "a figure of speech in which a word or phrase literally denoting one kind of object or idea ...