AviraDeArah:
There is nothing about the idea stated in the Baal Hatanya that contradicts the 13 Ikkarim.
Maybe you understand the difference between “godliness” and Hashem himself, I don’t.
A basic tenet of Christianity is total separation between us and Hashem to the point that an intermediary is necessary, insisting on this kind of separation is dangerously close to that.
Embassies around the world have the legal status of their home country does that mean that there are now “Two” of the given country?
Does Shabbos being מעין עולם הבא mean there are two Olam Habas?
Tiawd’s question is rooted in utter ignorance about the Oneness of Hashem.
One who learns and understands Shaar Hayichud of Chovos Halevavos can see that there is No contradiction whatsoever bet. the words of the Baal Hatanya and the Oneness of Hashem.