Castiel: There really is a lot to being human, isn't there?
Dean Winchester: It ain't all just burritos and strippers, my friend.
Castiel: Yeah. I understand what you're saying.
Sam Winchester: You do?
Castiel: Yes, there's more to humanity than survival. You... look for purpose, and you must not be defeated by anger or despair. Or hedonism, for the matter.
Dean Winchester: Where does hedonism come into it?
Castiel: Well, my time with April was very educational.
Sam Winchester: Yeah. I mean, I would think that getting killed is something.
Castiel: And having sex.
Dean Winchester: [chokes] You had sex with April?
Sam Winchester: Yeah, that would be where the hedonism comes in.
Dean Winchester: Shh. So... Did you have protection?
Castiel: I had my angel blade.
Dean Winchester: Oh. Oh, he had the angel blade.