10.09 coda of sorts. soul talk. mentions of hell. (ao3)
There was light. Castiel remembers that more than anything else he’s seen in his lifetime.
There was pain and grief and sorrow and debilitating guilt but underneath that, there was so much light.
Souls are a complicated thing, even more-so than Grace. They are an portrait of the owner’s truest selves. They are the good in humans, they are the bad in humans. They are everything that humans spend their entire lives learning to hide from the rest of the world.