What are the various figures of speech used in Shakespeare's "Sonnet 116"?

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playsthething eNotes educator| Certified Educator

The sonnet is a veritable feast of metaphors!  Shakespeare compares love to symbols of constancy:

"an ever fixed mark" - love is permanent and cannot be changed or removed.

"star" - a guide to follow, to avoid becoming lost.

It also uses personification, saying that even as love ages (as a person does), it does not change.  Love will even last beyond death.