just imagine the season 13 premiere starting and opening straight to dean holding cas and still be on his knees not able to move because of his overwhelming shock and depression. sam tries to pull him away a couple hours after it happened, but dean won't move or leave without cas' body. later, sam driving the car and dean in the back holding the body still unable to pull himself away, and somehow when cas healed dean he received some of the nephilim's power and in one moment cas wakes up in deans arms.