《四象映月》描述了星宿与月亮的规律
四张海报分别描述了 “天之文也”“地之应也“”政之则也““情之托也”核心是 “二十八宿”—— 把二十八宿拆成四象，用青龙、白虎、朱雀、玄武；“二十八宿天汉分野”—— 把天上的星宿对应到地上的州郡；“月相”—— 月相不只是圆缺， 更是古人的 “治世参考”；“诗以咏月”—— 把月相、情感、 诗词揉在一起
"Four Elephants Reflecting the Moon" describes the laws of the stars and the moon.
The four posters respectively describe "the text of heaven", "the response of the earth", "the rule of politics", and "the trust of love", the core is "twenty-eight constellations" - the twenty-eight constellations are divided into four elephants, using green dragons, white tigers, vermilion birds, and xuanwu; "Twenty-eight constellations of the Heavenly Han Division" - correspond the stars in the sky to the states and counties on the ground;
"Moon phase" - the moon phase is not only full and waning, but also the "reference for governing the world" of the ancients; "Poetry sings about the moon" - kneading the moon phase, emotion, and poetry together