User blog comment:A.J AL/Season six plot hole./@comment-5619706-20121215033415/@comment-3481504-20121216025225

If it's not a law implemented by God, why didn't Cas absorb all of Heaven's souls instead of time traveling and preserving all the lives in attempt to whip up new souls? I mean, Raphael could've easily absorbed Heaven's souls and go to Hell and absorb all of those?