I believe her body has died at modern world.
old-Beatrice's soul was said to have been diyng so that was the reason for her to be summoned in the first place.
But when the old-Raeliana saw the chance to live her life in place of Beatrice and be the "protagonist" she took the chance.
When tha crazy ass(priestess) chic said to the duke to kill the brunnet she was talking about the soul(old-Realiana was in Beatrice's body and the soul who was meant to be the new-Beatrice ended up in Realiana's body).
So... she was saying that new-Raeliana is her soulmate(づ ̄ ³ ̄)づ
You and me both buddy ....You and me, both
That was ...... something (≧∀≦)