This is a golden key for readers to approach arts. It analyses the essence of the origin of arts from the psychological aspect, describes the facts of arts creation and reveals the psychological journey of artists. From the Spanish rock paintings to contemporary postmodernism, artists have never given up on the visualization and expression of the inner world landscape. It tells the reader that the change of human consciousness determines the evolution of art forms. Whether exquisite or crude, serious or absurd, brilliant or gloomy, art not only proves the existence of artists, but also truly describes the hidden reason, emotion and desire of the human beings of different era, as well as our thinking on the future