To clarify, it would be a matter of the bread/host changing rather than Christ “entering” it; the latter sounds closer to Lutheran views.
Not to disrupt a truly fascinating thread, but Lutherans in no way believe in the host “being entered” with Christ’s Body and Blood. We simply acknowledge that the Bread and Wine
are His Body and Blood because He said they are. We say no more and no less. It is a mystery how this happens, as the other poster has noted.
Roman Catholics often mistake us for “Consubstantiationists,” but this is a false accusation. The misunderstanding is due, in part, to the Roman Catholic understanding of the Sacrament being a bit more “explained” and seemingly Aristotelian (at least, on the surface). It’s also not helped by the fact that many authoritative Roman Catholic sources surprisingly define ‘Consubstantiation’ in the negative; in other words, anything that proclaims the Real Presence and is not Transubstantiation is deemed to be Consubstantiation. Just silly.
Lutherans, on the other hand, simply acknowledge that Christ is really, truly, physically present in every possible way (in, with, under, around, over, behind, whatever-- it’s real, not merely spiritual, like in Calvinism) and do not attempt to explain how this happens like Transubstatiationists or Consubstantiationists.
Ok, now please continue with your thread.