Metaphor is often thought of as something that is confined to literary texts, but as we shall see, this really isn't the case.
Everyday language is full of metaphor, and it is actually quite difficult to use language without it!
Let's look at an example - the metaphor of LIFE IS A JOURNEY. (In linguistics, the standard way to show metaphor is by using capital letters). In this metaphor, the abstract concept of 'life' is understood as a concrete, physical 'journey'.
This generates sentences such as: