On the seventh day of the seventh month, in the Hall of Eternal Life, in the dead of night, whispers drifted by. Romantic? Poignant? Regretful? Tragic? The story of Emperor Xuanzong of Tang and Yang Yuhuan depicts the rise and fall of a dynasty. Such a pity: China, from its openness, inclusiveness, and ambition, became inward-looking, steady, and balanced, ultimately ending completely at the end of the Southern Song Dynasty, the first Han dynasty to fall. How I wish Emperor Xuanzong of Tang, a historical figure, had risen to the occasion, led his troops, quickly wiped out the rebellion, and unified the country.