I have a tendency to hold on to things too long. Here's a random list off the top of my head of things that I have kept longer than I should: socks that are too small (3 years), a rock collection made up of rocks I found in suburban backyards (15 years), lettuce that's in the in-between stage of going bad so I-don't-want-to-eat-it-but-I-feel-bad-throwing-it-away-until-it's-disgusting-so-I-save-it-until-it-is (7 days multiple times).
I feel bad getting rid of things that are "good enough", even if they've lost their purpose. Recently I've come to realize that holding onto things longer than I should sucks my joy. Things that once brought me happiness and life become something I hold onto begrudgingly, glancing at them as they gather dust.
I'm not just talking about rocks and lettuce. I've had friendships, relationships, and jobs in my life that are perfectly good, safe on every level, but they stop giving life the way they once did.
So the real question I've been wrestling with is, how do you decide when it's time to let go of something that is perfectly good?
I was talking to a friend recently about how you know God is calling you to something else. I said that for me it's often a feeling, a healthy discontentment or peace when there shouldn't be any. The response seemed weak at the time — peoples' guts have been known to be wrong a time or two. But, I think these feelings reflect a realization that I never want to look at something I once viewed as a beautiful gift, and see it as something I hold onto more for the principle of it than the purpose, letting it grow dust in the corner of my heart.
There are times we are absolutely supposed to dust things off, look at them with a new lens, and hold them more closely, realizing we've simply been taking them for granted this whole time. But, there are other times we're called to take a step of faith and let go of that perfectly good thing, to make room for a new gift. It is never easy to let go of something good, there is always risk involved. It's also not especially easy to distinguish what we pull closer and what we let go of.
All I can say is that we need to look closely, gathering more things that bring us life, and discarding the fear that letting go of something good will mean the good is gone forever.