Which of the following best defines a metaphor?

A metaphor best defines a comparison that asserts a direct relationship between two unlike things, suggesting that one thing is another. This is done without using connective words such as "like" or "as," which distinguishes it from a simile. By stating that one thing embodies the properties of another, metaphors create vivid and impactful imagery, allowing for deeper understanding and emotional connection. The essence of a metaphor lies in its ability to redefine or illustrate ideas in a more evocative way, fostering a more profound grasp of the subject being discussed.