it’s the most beautiful destruction because everything about dean winchester is beautiful.
castiel knew this was coming.
having pulled this boy out of the pit and woven his soul back into his body, there weren’t many things about dean winchester that castiel didn't know. and if dean winchester was anything, it was stubborn.
so, all things considered, castiel wasn’t all that shocked when he was summoned. that didn’t mean he had to be happy about it.
(and if the big dramatic entrance wasn't quite necessary - well, nobody had to know.)