I am not sure that I agree that there is “misunderstanding”. If misunderstanding were the issue it would take minutes to clear things up. I think that there is a willful effort to cling stubbornly to and to propagate distortions. Or an implicit rejection of orthodox Trinitarian Christianity.
The posts that I have responded, IMO, send an unfortunate message that downplays the significance of the Theotokos in the plan of salvation. The reality is that Eastern Christianity and the whole CC celebrate her, without apology, in the strongest terms.
I have seen this point debated on EO fora, usually in the context of discussion about the real presence, and transubstantiation. There is a range of opinions, but the clergy from the more conservative groups hold an opinion that differs from yours.
And that is the point of my posts. You start with a particular notion about the division of essence and energies that leads you to draw certain conclusions about the Eucharist which may need some reconsideration. However, there is evidence from the teaching that a human gave birth to divine essence that could help in that reconsideration. Something to think about.
On the first point about “a willful effort to cling stubbornly to and to propagate distortions,” you might be entirely correct. In some individual instances, I’m sure you are. However, for most of my life as a Protestant, I rejected the title “Mother of God” as bordering on idolatrous. When I took a Church History course, and was explained that the title is more about our Lord, and that it affirms his full divinity, I understood why we use the title.
I entirely disagree that I, or others in this thread, are downplaying the significance of the Theotokos in the plan of salvation. Indeed, we do celebrate her without apology. However, affirming that our Lord took his humanity from her and that she did indeed give birth to the Incarnate Word of God does not mean that she received in her actual person the divine essence. Yes, during the time our Lord was in her womb, she contained within her body God the Son, and so we can say, in a very narrow sense that she received the divine essence, but not on the level of being united to it. I fail to see how the denial that she was not personally united to the divine essence fails to appreciate her unique role in salvation. On the other hand, I think when we state that she did receive the divine essence in her actual person, then we place ourselves in the position of denying the divine transcendence, and make her out to be something other than what she is, viz., a human (albeit a very special one), just like the rest of us.
As to the question about Eucharist, I spoke with my priest about this. His position is the same as mine, which is that if we say that we receive the divine essence in receiving the Eucharist, we deny the teaching that that the divine essence is eternally transcendent, incomprehensible, and impenetrable. When we receive the Eucharist, we receive the body and blood of our Lord. We also receive his divinity (and therefore, are assimilated to God), but in terms of the divine energies, not the divine essence. Again, to say that we receive the divine essence ultimately destroys the teaching of divine transcendence and the distinction between God and his creatures, the logical end of which is pantheism. Something to think about.