Steg, of BoroparkPyro
To me, berit mila is the opposite — a more primal, 'primitive', physical form of connecting to the Divine. We literally sacrifice a piece of ourselves and our children, performing the most miniscule echo of human sacrifice.
I don't know why so many people associate circumcision with sacrifices. It seems to me that it is a lot more akin to the scarification
and tattooing practices, as well as circumcision, that are still found in many more primitive cultures. In many cultures these body modifications are done as a right of passage or as an initiation into the group.