Alright so, lets start with the comparing part of this essay. Metaphors and similes both compare two different things are the same, so like "My heart is like an open highway" and like "Life is a highway". They both compare 2 things that are different and make them similar to each other. So for the contrasts, basically similies use as or like to complete their comparing part. They will always use them when they are using similies. But on the other hand metaphors DO NOT use words such as like or as. That's for the similies. You also have to state that metaphors are way more subtle than similies because they aren't using like or as.
