world through what appeared to be an interdimensional portal created by the flaming sword?
I agree. Lucifer stroke a tear in the fabric of reality and cast mum into it as it has been hypothesised by the quantum theory, but so far we haven't been able to prove it. Not indefinitely. But what happened could have been produced in theory by the scientific methods. And that makes this so much more interesting as Arthur C Clark said: "Any sufficiently advanced technology is indistinguishable from magic."
To us Lucifer is magic and what happened looks as if he was sent in Mum's world ... or then doomed to a new kind of Hell. But whoever did the deed, knows Lucifer as the Prince of Lies. It's just he never lies and more so, he has been vehemently on the good path rather than getting involved in everything dark. And that's the reason why I love watching this series. It's funny and colourful instead of being dark and serious.
Charlotte, who as I recall was dead when Mom took her body, is resurrected?
I don't see it that way. She was given a second chance, meaning that the moment she was about to die, mum took over and in time, she healed her body. But I can believe in the resurrection theory as well. At least in that way it's explainable by the Bible and the good deed gave the wings back to the Fallen Angel.
Is he going to burn them as well? Or does Luci understand that he's no longer on the same path that send him in the Hell at first place? Either can happen, but I believe latter is more believable than him being stupid and ripping them off, because he's angry to the Dad.
Another angel? One of the Apostolics? The voice of God? A saint? Whoever, we can be assured that he or she is part of the Celestial Family.
Well, at least Linda seems to have been saved. I was afraid that Mom's interrogation had ended with char-broiling.
Yeah. She was saved almost miraculously by the union of demon and angel on the very moment Mum was sent to another plane of existence. I rolled a tear and felt dark clouds of PTSD coming in like a bad storm by seeing her in such bad shape. It is interesting that she stays sober with all knowledge she's been given taken in the light that she deals everyday with supernatural beings.