“Purgatory is a really brutal, free-wheeling place, but it has different effects on different people. It will have a different effect on Cas and Dean as you already started to see [in the Season 7 finale]. But I will say what you think you saw might not be exactly what you saw.”
I just had a thought. What if Purgatory effects people by tapping into their fears or something like that? And at the end of the finale when Cas disappeared on Dean, it was actually just a hallucination caused by Dean’s fear of abandonment?
THAT IS AMAZING OMG I WANT THIS SO BAAAD
OMG imagine if it also showed Dean Castiel’s worst fears, which would be amazing character development and show how much Dean means to Cas, because some of them would be Cas’ fear of losing Dean. And when Dean gets back he feels so guilty and doesn’t want to tell Sam - especially a Sam who hasn’t tried to rescue him - how much he means to Cas, because Dean’s self esteem can’t quite believe it.