The Importance of Ritual Defilement

When they're serving as a priest, there's only certain people that they are allowed to defile themselves in connection with. But anybody else, he is not allowed to do that. So by the file themselves, I mean that they, they can basically help with the preparation of the body for burial. In some way come into contact with the corpse and so knowingly and willingly place themselves into a state of ritual defilement.