[quote=CallaLily180]
No, they are like Dr. Jekyll and Mr. Hide. They share a mind, and have two bodies though they have their own traits and likings. My inspiration for the two of them came from Host. (A book) It is very confuzzling if I do say so myself. But I understand it because I am crazy enough to know my own creations.
[/quote]
In glad you understand because I don't every book I have read of people who share a mind have little knowledge or total knowledge. Cas/Sara seem to have a weird middle ground where sometimes they do and sometimes they done.