In this passage from "Romeo and Juliet," the imagery conveys the tragic consequence of death. It describes a state of lifelessness where the character's blood has ceased to flow and her joints have become rigid. The separation of life from her lips emphasizes a profound stillness, highlighting the irreversible nature of her demise.

Furthermore, the metaphor of death lying upon her like an unforeseen frost captures the abruptness of her passing. This imagery likens her life to a beautiful flower, suggesting that her potential was abruptly cut short, making the loss all the more poignant. The comparison to a frost implies that her beauty and youth have been frozen in a moment of despair, leaving behind a stark reality in the wake of death.