Been listening to a lot of Jpop/Jrock recently, and stumbled across a particular line from a particular song that really stuck with:
明日の君から僕は君を知らない。
Starting from tomorrow, I won't know you anymore.
Now, in context this line isn't what most people would WANT to hear, but I still think it's pretty savage nonetheless.
Out of context, I think it really speaks a lot about letting go. Maybe encounters are meant to be just that- transient moments in time and space continuum that shouldn't be dwelt upon afterwards.
This applies to people as well. People come and go, and it's okay to want to know a person for only a matter of seconds before forgetting about them completely.