Precedent For Metaphorically Drinking Blood And Eating God

Do a Ctrl F search for "John 6" in Glenn Miller's article here. In a video here, Steven Nemes makes a lot of good points about the eucharist and whether Christ is physically present in it. My main interest in this post, though, is his examples of precedent for viewing the eucharist in a way that doesn't involve a physical presence. We often apply the same sort of reasoning in other areas of life (when speaking of the Passover elements, when referring to how an actor is the character he represents, etc.).