Why use simile?

Generally, a
writer uses similes to enable the reader to imagine in his mind what the writer is saying. This
is why a writer compares one thing to another with which the reader is familiar. The speaker
compares his love to a red rose that has just bloomed. We are all familiar with a rose, so we
are able to better understand the comparison. Most people are awed by the beauty of a
"newly sprung" rose, so we can understand how the speaker feels about his love. He
also compares to "the melodie/That's sweetly played in tune". Again, music is
universal, so we can all understand how the speaker feels. We can imagine how we feel when we
hear a beautiful piece of music played. It sends chills over us, and this lets us comprehend the
speaker's feelings.