* Heave: This word suggests a powerful, forceful movement, like something trying to break free.
* Caged angry beast: This image represents the feeling of strong, negative emotion that is being held back and suppressed. The beast could be anger, fear, sadness, or any other intense emotion.
* In your chest: This locates the emotion in the physical body, suggesting a visceral and powerful experience.
The overall effect of the metaphor is to:
* Emphasize the strength of the emotion: The beast is strong and powerful, suggesting that the feeling is difficult to control.
* Highlight the feeling of being trapped: The cage implies that the emotion cannot be expressed freely.
* Create a sense of urgency and danger: The angry beast is a threat, suggesting that the emotion could erupt at any moment.
This kind of language is often used in literature and poetry to create a vivid and impactful image for the reader. It's a powerful way to convey the intense and potentially dangerous nature of strong emotions.