Lost
"Cas. Talk to me."
"It's nothing."
"Don't give me that crap. I know you. Something's up."
Cas sighed. "It's just… what is there for me now? Heaven is running smoothly, Hell is under control, the hunter network is stronger than ever, you're free of the Mark and I'm just… here. Not doing much of anything. I have no purpose anymore, no mission. I'm not an angel of the Lord, I don't belong in Heaven… but I'm not human either. I don't seem to belong anywhere. I just feel… lost."
"Dude, are you serious?"
Cas frowned. "Of course I am serious. I do not see any humour in my situation at all."
"No – don't look at me like that, I'm not making fun of you. I just thought that you would have realised by now."
"Realised what?"
"Look, man, I get where you're coming from. I never felt like I fit in anywhere either. Thing is, I didn't and I couldn't if I tried. But it's not about the place. It's about the people."
"I don't follow."
"You don't belong in Heaven, Cas. They're not your family anymore. Sam and I… I know we're not much. We're broken and dysfunctional and a right mess half the time, but if you'll have us…"
"You're saying… I can stay here with you?"
Dean smiled and pulled him into a rough hug. "Yeah, Cas. This is where you belong."