We entered the compound through the gate to the right. The one with the red doors was reserved for the emperor. In front of us was the round, three tiered mound with numerous posts and gargantuan drain spouts similar to those seen on European cathedrals. We were told that all sections have nine posts, nine steps, etc. The number nine was the highest digit and reserved for the emperor; it could be found all around his domain. Also the round shape signifies Heaven and the square lay-out of the plaza meant Earth. Likewise the color blue, such as the roof tiles, was reserved for Heaven. On top of the Altar of Heaven and in the center was the Tianxi Stone, the spot where the emperor would make the sacrifices to Heaven. Again the marble pavings surrounding this center stone were multiples of nine. Three hundred years ago the two of us standing on this holy spot would be beheaded as the sacrificial lambs.