The Nagual said that the human form is a force, and the human mold is…well…a mold.
[Don Juan] explained that sorcerers have the avenue of their ‘dreaming’ to lead them to the mold and the mold of men was definitely an entity, an entity which could be seen by some of us at certain times when we are imbued with power, and by all of us for sure at the moment of our death.
He described the mold as being the source, the origin of man, since, without the mold to group together the force of life. There was no way for that force to assemble itself into the shape of man. (Ring, 155)

…When I was complete again (I saw the mold)…I went to that particular water hole on day by myself and there it was. It was a radiant, luminous being I could not look at it. It blinded me, but being in its presence was enough. I felt happy and strong…more. (Ring, 157)

THe Nagual said that a warrior with enough power can see the mold many, many times. What a great fortune that may be! (Ring, 158)