The Sad Reality of Things ( Destiel and Sabriel)

John has never been who he said he is and in turn, it caused Mary her life when John's people found out he had had children with her. Sixteen years later, finally tired of John's shit, Sam and Dean seek their uncle Bobby's help to answer long awaited questions. But most importantly, why had Dean woken up one day with wings on his back, head buzzing with images of this angel like man drilled into his mind and why was Sam having visions of a guy who always got into trouble?