>>66784306Outside help being required, I agree, but it still doesn't explain the temporal circumstances in which Rakka started being sin-bound. I can't see any guilt in there, just the start of the depression that culmines with self -loathing. But I see no guilt in there (I do understand the relation between guilt and sin-bound curse in Reki, though).
Maybe the curse is just representing a deep personal conflict that the Haibanes can't resolve on their own, and that's where outside help comes in. For Reki, there were trust issues, abandonment issues and heavy guilt.
In Rakka's case, it's more of an existencial conflict: the feeling that her existence had no meaning, coupled with the early recurrent thoughts of not knowing what they are, what the walls and everything else are, and what lies beyond them, spiralled into a nihilist-style depression, with her thinking nobody cared or will care. That's when she remembered the dream and the bird trying to save her, and she was "cured" of the depression.
I like this view, I'm going to stick with it.