What literaly devices is use in this passage like a cage for a human dormouse?

In the phrase "like a cage for a human dormouse," simile is employed, as it compares the confinement of a situation to a cage, emphasizing restriction and entrapment. The term "human dormouse" adds an element of metaphor, suggesting a state of inactivity or lethargy, akin to the hibernating animal. Together, these devices create a vivid image of confinement and the struggle against stagnation or passivity.