Throughout their lives, stars turn basic elements like hydrogen and helium into richer, heavier elements. When they die, some stars then scatter their remains, full of those enriched ingredients, into gas clouds across the galaxy, where they’ll later regroup and become part of a brand-new star system. It’s poetic—the next generation of stars benefiting from those that came before. To me, that’s a powerful message: Instead of worrying about getting older and whether we’re as athletic or pretty or thin as we used to be, we can focus on leading a brilliant life that will be remembered. Make an impact; even if your job doesn’t help save lives, you can create art or do something that will bring joy to someone else. You should celebrate each day that you’re able to leave a lasting effect. It means that even as you get older, the universe will someday be a little bit better because you’ve lived in it.