In the family hymns recorded in the Classic of Poetry , the Ji family is traced from the miraculous birth of the Xia dynasty culture hero .
Court official Houji caused by his mother 's stepping into a footprint left by the supreme god Shangdi .
In the family hymns recorded in the Classic of Poetry , the Ji family is traced from the miraculous birth of the Xia dynasty culture hero and court official Houji caused by his mother 's stepping into a footprint left by the supreme god Shangdi .