Spoilers for 7x01. If you didn't watch it, DO NOT READ. Big spoiler of big nice scene you should definitely, definitely watch before reading this.
Sam is calling
Sam is calling.
Castiel is bleeding. His vessel never bled this long, this… much. He can't stop it. He feels his body getting weaker, his resolve… failing. He can't stop bleeding. He's going to crash…
Sam is calling.
Sam.
Sam is calling.
Sam is calling and saying he is still one of them.
It's a trap. Probably. Most likely. The Winchesters are probably in the middle of another plan to kill him. And this time… they might actually be able to do it. He is weak. He is so weak.
Sam is calling.
Sam's voice is so… Sam's. Sam is back now. All back, whole in a way Castiel has never seen him. Whole in a way he can only recognize from the descriptions Dean gave from before. Before the cage. Way before the cage. Way before the Apocalypse. Sam is back and he seems to be the way he was supposed to be. Sam is… calling.
Sam is calling.
It's a trap. But maybe… maybe Castiel should die now. Maybe this is a good time. Maybe he's done enough. He tried… he tried to save them, save them all, save the world. He tried to show a better way, a better world. He failed. He went too far off, he was self-righteous, he's bleeding and maybe he should die. Or worse. If he had a soul, he should probably ask Crowley for a place in Hell. Maybe he should walk inside Hell anyway, soul or not. Walk into Hell out of his own free will. For penance. Like Sam.
Sam is calling.
Sam came back from Hell. Back from the cage, with all the pieces Castiel left there. Sam went to Hell for penance. Sam walked into Hell, body and soul, out of his own free will. For penance. Because… because he went too far off thinking he could save the world. Sam went too far off, Sam was self-righteous, Sam… redeemed himself. Sam redeemed himself to Dean. Dean forgave him.
Dean…
Dean said Castiel was like a brother to him.
Like Sam.
Sam is calling.
Sam is calling.
Sam is calling.
A blink. He's there.
"Sam. I heard your call."