Duende or tener duende ("to have duende") is a Spanish term for a heightened state of emotion, expression and authenticity, often connected with flamenco. The term derives from "duen de casa" (master of the house), which similarly inspired the duende of folkore.
El duende is the spirit of evocation. It comes from inside as a physical/emotional response to art. It is what gives you chills, makes you smile or cry as a bodily reaction to an artistic performance that is particularly expressive. Folk music in general, especially flamenco, tends to embody an authenticity that comes from a people whose culture is enriched by diaspora and hardship; vox populi, the human condition of joys and sorrows. Drawing on popular usage and Spanish folklore, Federico García Lorca first developed the aesthetics of Duende in a lecture he gave in Buenos Aires in 1933, "Juego y teoría del duende" ("Play and Theory of the Duende").