It was finally over.
After a thousand years, the Nightmare had returned. And thanks to the Chosen Ones, so had Luna.
Celestia knows she has no right to ask for forgiveness. What she had done to her was horrible. Despicable. Evil.
But she had spent a millennium waiting, trying to fill the hole Luna left in her heart with something, anything. But like square pegs in a circular hole, nothing would fill it.
Celestia asks, and for a moment, she is afraid.
Luna cries, and runs to her sister, and at long last, the Luna-shaped void is filled again.