My patriotic heart beats red, white, and blue.

This anonymous line uses a vivid bodily metaphor to express intense national loyalty: the speaker’s “heart” (the seat of feeling and identity) is imagined as literally pulsing in the colors of the U.S. flag. By substituting red, white, and blue for blood, it dramatizes patriotism as something innate and life-sustaining rather than merely political opinion. The phrasing is typical of ceremonial or popular patriotic rhetoric—short, declarative, and emotionally charged—suited to speeches, greeting cards, social media posts, or holiday messaging (e.g., Independence Day, Memorial Day). Its power lies less in argument than in identification, inviting readers to affirm belonging through shared symbols.