“Passion. It lies in all of us. Sleeping… Waiting… And though unwanted… unbidden… it will stir, open its jaws, and howl. Passion is the source of our finest moments… the joy of love, the clarity of hatred and the ecstasy of grief. It hurts sometimes more than we can bare. If we could live without passion, maybe we would know some kind of peace, but we would be hollow. Empty rooms, shuttered and dank… Without Passion, we’d be truly dead.”
-Angel

GILES: He's, he's trying to... resolve whatever issues are keeping him in limbo. W-w-what exactly those are, I'm not...
BUFFY: (interrupts) He wants forgiveness.
GILES: Yes. I imagine he does. But when James possesses people, they act out exactly what happened that night. So he's experiencing a form of purgatory instead. I mean, he's, he's doomed to, to kill his Ms. Newman over and over and over again, and... forgiveness is impossible.
BUFFY: Good. He doesn't deserve it.
GILES: To forgive is an act of compassion, Buffy. It's, it's not done because people deserve it. It's done because they need it.