"The Dark Angel" is a poem by Henry Wadsworth Longfellow that explores themes of loss, love, and the passage of time. The poem personifies death as a dark angel, reflecting on the inevitability of mortality and the sorrow it brings. The speaker grapples with the pain of separation from loved ones, emphasizing the emotional weight of grief. Throughout the poem, imagery and symbolism are used to convey the contrast between life and death. The dark angel serves as a reminder of the transient nature of existence, urging readers to cherish their moments with loved ones while acknowledging the reality of life's impermanence.