Where does Tian Zi come from in The Palm of the Saints?

Salvia purpurea Because when Saint China was born, he had a Tian Zi seal on his left hand, but this Tian Zi seal was not an almost impossible Oda word patched together with a common random pattern, but a square Tian Zi with the main pattern, which was bigger than his whole palm, so the saint's palm had Tian Zi from the China saint.