The figurative language used in the lines is a metaphor which is taken from the story Twelfth Night.
Figurative language asks the listener or reader to comprehend something in light of its relationship to another thing, action, or image. This helps the reader to compare two things.
The lines are based from the story Twelfth Night, highlighting mistaken identity in its plot. The theme reflects amazing things that love will force us to do—and witness. It also explores illusion, deception, disguises in the whole plot.
A metaphor is referring to a comparison between lines without using words likes “as”. It explains things that are not true.
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