Once you have engaged with something, you cannot be unengaged. This engagement leaves a mark, and this mark becomes a tie. Connected ties cannot be cut — not without paying an equal price.
|—||Watanuki Kimihiro, xxxHolic Rei|
Those who are no longer needed have no choice but to be forgotten and disappear no matter how precious and irreplaceable they are. Everything will flow as it always has. It is not good or bad. It is for them to choose and decide. Only one thing is the same for everyone. We are unable to return to the past. It might look unchanged, but it is not the same. What has been lost cannot return to how it was.
|—||Ichihara Yuuko, xxxHolic Rei|