Haibane renmei2002

Rakka:
She's been blaming herself all this time. Why is it only Reki that can't be forgiven?

Communicator:
Why do you think YOU were forgiven?

Rakka:
It's not because I forgave myself.

Communicator:
That is correct. No one is able to forgive themselves. However you had the bird. Someone believed in you, and stood by you.

Rakka:
By recognizing one's own sin, you can't help but go around in circles if you're alone.