crazy how you can just be this alive one year and then dead the next. I get 91 is old, but still

That is truly a gift, to be able to be that active until almost the end of your life.

Life well earned!

People don't think it's like that but it is, for all of us, eventually.

By "this alive" I think they meant physically active and wits about her despite her age. For many of us, unfortunately, it's not like that eventually: a slow and complete deterioration even before death.