Vanilla beauty symbolizes loyalty and patriotism to the monarch. This paper starts with Yi's Preface to Li Sao and interprets the article Li Sao. According to the Book of Songs, it uses quotations and metaphors, so it is good at describing herbs to match loyalty, and is good at using beauty to compare kings or self-metaphors. The image of beauty is generally interpreted as a metaphor, or as a monarch, or as a self. As an independent symbol, vanilla image can refer to the nobility of morality and personality.