how to live gracefully when you get old?

how to live gracefully when you get old?
I still remember a man saying that when you
get old, you have to know how to bear
indignity. I understand that you will be
short of money to buy luxuris or travel
and be lack of energy to do what you want.
But it's not a big deal, the most disgraceful
thing is that people no longer consider you
as their equal, they will regard you as
a burden. so you should be well prepared
physically and mentally.so What else should
you be prepared and how to deal with this?