Rida

“You will never find it," his ghost says. "What?" "What you are looking for. You want to go back to the start. You want to go back to where you began. You want to find the happiness you once had. But you can never get there, because even if you somehow found it, you yourself would be different. You would have changed, from your journey alone, from the passing of time, if nothing else. You can never make it back to where you began, you can only ever climb another turn of the spiral stair. Forever.”
― Marcus Sedgwick, The Ghosts of Heaven