All good things eventually come to an end. Everyone is on a different path. Sometimes those paths cross and join for a while, and friendships blossom, and then a while later they uncross and go off in separate directions. Sometimes they loop back around and cross again later, but not always - when they do, the two people that shared paths before might well be two completely different people with a different relationship the next time.
Letting go is good when an end does come. It's good to recognize when it's time, and to do it gracefully instead of clinging vainly on, which can sour the ending. And it's good to not think about endings while things last, but to enjoy every moment as they come.
And sometimes, a path can lead away not from another person, but from a community or an activity.
I came to a fork in my path a long time ago. I've never been good at letting go. Instead of making a choice, one or the other, I keep trying to do both. But with each new door that opens on the path I need to choose, the other path drags me back. I'm trying to go up the middle and I keep running into trees.
It's time I stopped that. RPoL was very good to me for the past four and a half years, but I can't do it anymore. I've been trying to deny the inevitable, trying to recall the enthusiasm I once had from ever greater depths, but it just isn't there. I need to let it go.