[ sam isn't looking too hot, so dean doesn't waste any time with his words, not if it means soothing some of that obvious pain from his brother. ]

Angels can, uh, they can raise a soul from Hell, or I guess bring one back from Heaven, too. That's what he did. [ a beat. ] And 'cause he could, is why, I think. It's a long story. [ a long story that involves him thinking back to trapping cas in a ring of holy fire, to finding out just how much and for how long the angel had been working with a demon. there are no nice details involved in that whole mess. ]