This volume takes on the challenge of representing a sound installation by the Swiss artist Daniele Buetti, commissioned by the Schirn Museum in Frankfurt, which transfers color theory, meditation, and hypnosis into an artistic context. It’s All in the Mind is built around a twenty-five-minute audio performance that takes the audience through the techniques of hypnosis. In the work, Buetti uses techniques that rely on “color purification,” conjuring up different colors and their varying psychological effects. Interviews with specialists in hypnosis and in Buetti’s work complement the illustrations and help explain and interpret the work.