"That's not what I asked. I asked if he knows." He turns his attention back to Dean and pulls in a breath.

"I think... It matters that he knows. I think it might be all that matters. We can do all we want to try to save him, Cas, but it's not gonna make any difference unless he wants to be saved."

He looks at Castiel again, direct and open. "Unless he has something to come back for."