"Li" says: Only the emperor builds a high platform to show the emperor's virtue. In the past, when Zhang Xinjie was studying at Taixue, he had stopped at the steps countless times, looking up at the nine-story building where the emperor lived and governed, and where the palaces were everywhere. The main palace where the emperor lived was located above the many palaces. There were horned dragons on the four corners of the eaves, holding pearls in their mouths.
Intention: Everything depends on human effort