User blog comment:ImperiexSeed/Castiel's shifting of Sam's mental problems made no sense!/@comment-3045936-20120402044434/@comment-3045936-20120402173334

No I mean that Castiel just siphoned some of it off. Like As angels don't have souls for they are angelic holy ethereal/spiritual beings can siphon off energy from souls. Like with Boddy in Frontierland but in this case took a specific part of sams soul. He didn't cut it from sam just absorbed the affected energy.