Popol Vuh (p. 99)

Hun Hunahpu speaks to Xquic:

It is just a sign I have give you, my saliva, my spittle. This, my head, has nothing on it — just bone, nothing of meat. It's just the same with the head of a great lord: it's just the flesh that makes his face look good. And when he dies,people get frightened by his bones. After that, his son is like his saliva, his spittle, in his being, whether it be the son of a lord or the son of a craftsman, an orator. The  father does not disappear, but goes on being fulfilled. Neither dimmed nor destroyed is the face of a lord, a warrior, craftsman, orator. Rather, he will leave his daughters and sons. So it is that I have done likewise through you.