“Rich” means different things to different people, but in this case, the good doctor is referring to material wealth.
There is a lot of truth in the axiom that “Rich is always twice what you have.” I’ve found that to be true in my life and I bet you have too. So, assuming we are rich, what can we do to feel rich?
The first thing you need to do before you can feel rich is to get rich. There are a lot of well-meaning folks out there who say “rich is a state of mind,” “we’re all rich compared to the starving refugees,” and the like.
Wealth can be ripped away from you very quickly in certain situations. You can insure against many of these situations pretty easily and inexpensively.
The solution to anxiety isn’t accumulating more money. That just makes you the richest guy in the graveyard. Hearses don’t have trailer hitches.
Knowing your net worth, your required spending level, your desired spending level, and your “enough” level, and having some sort of plan to arrive at that level removes a great deal of worry and anxiety.