Everything that was happening before Dean's eyes only resulted in the hunter moving forward to grab Sam in the way he used to whenever Sam was in trouble, and talk to him. "Sam, it's okay. I got you, Sammy." Dean kept his arms around Sam for a long moment, waiting for some sort of responce that Sam was back in the real world with him and Cas.
It had been a long time since Dean held his brother and told him it was okay. Years, to be exact, but it had also been years since something this bad happened. Dean hadn't hardly bothered to hug Sam since he got back from Hell. They had seemed to become distant since the demon had come between them. But right now, more than anything, Dean was just glad to have his brother alive, and here with a soul. There were no words that would describe how much the robotic antics of Sam had bothered Dean to his core, and how thankful he really was to have Sam with a soul. Broken or not, Dean would do all he could to keep Sam in one piece.