Health
I took it for granted. Never imagined that ability was something that could end. I didn’t have to. Nobody does; in the prime of your life you are chasing goals. That’s what you have to do, you don’t have to consider limitations.
The benefit of being ill is having insights that otherwise only would come with age. I hope I can apply them while I’m still in my capable days. While I can do something about it all.
Being old will bring more understanding. One is never old enough to stop learning, but you have to be self-sufficient enough to make use of it.