Every year around Winter Solstice, the 22nd solar term of the Chinese lunar year, meaning the "summit of the winter," the Palace Museum welcomes an annual spectacle-the signboard inscription with "Upright and Pure in Mind" ("Zhengda guangming" in Chinese) and the five golden dragons below it in the Palace of Heavenly Purity (Qianqing Gong in Chinese) are illuminated from west to east. Follow CGTN as we invite experts to explain the magnificent view and its cultural connotation.