What’s one life lesson that becomes more meaningful with every passing year?

Is there a psychological reason why people feel more connected to their old concert tapes than to digital files?
What are some daily practices that help people with BPD maintain the progress they make in therapy?
How do you distinguish between the excitement of a new romance and the gut feeling that something is wrong?
How do you find a reason to keep going on the days when being sober feels more difficult than being addicted?