The general consensus, standard, societal, cultural definition of wealth has always just been money. In my view, it's really because money is so measurable. Peter Drucker, the management theorist, says, "What gets measured gets managed." And the reality is, a feature of money is that it is so measurable. You can place a single number next to your name and determine your entire life worth.

Unfortunately, while money is useful as a tool for a whole lot of things in our life, it is not the singular thing that contributes to a life of meaning and a life of fulfillment and happiness. There are many other things. That is really what this book is about, the five types of wealth, financial wealth being one of them.

So I am very much not saying that money doesn't matter and that you should go live off in the Himalayas meditating 12 hours a day and drinking warm broth. If you want to, by all means, go do that. I just won't be joining you. But it is a life built around these other four things in addition to money.

those other four are time wealth, social wealth, mental wealth and physical wealth.