If that is a truth... you are right, it is a greatly different dream from a normal one. It does have a feeling of realness. More real than a normal dream...

[She toys idly with the end of one of her necklaces, thinking.]

How long have you been here, Edelgard? I am thinking you are not known as missing.

[The explanation Edelgard gives her is compelling, strange but compelling. It's difficult to continue to dismiss it as nothing but dream logic.]