Simile
In this figure of speech, two things are compared that are not really the same, but are used to make a point about each other.
“Life is like a box of chocolates; you never know what you’re going to get” is a famous line from the movie Forrest Gump that illustrates the simile. This is often used to make an emotional point about something. The difference between simile and metaphor is that you can obviously see words "like" in the sentence.