I am getting old and it's a good thing

Read this article which claims that people get happier as they get older. One part of it really struck a cord with me: "As people get older, they're more aware of mortality... So when they see or experience moments of wonderful things, that often comes with the realization that life is fragile and will come to an end. But that's a good thing. It's a signal of strong emotional health and balance." This is exactly the way I began to feel after Tim was born. Perhaps this means that my emotional health is getting stronger and I have more balance in my life? hmmmm