"Because the only means either of us has to do this is in front of us right now, on that wall," he explained, nodding towards the symbol. Most of the blood went to drawing the symbol on the wall with the smaller ones around it. "And I'm only taking a few extra. No more than five." Really, it was only one. There was one little tiny pointless soul that he wanted and the rest? Well, Castiel wasn't concerned about what would happen to the rest in the present moment.