Wealth is Mental

I just cashed out some gains I got from Bitcoin (cryptocurrency) and currently I feel very pleased and secure with my finances. But the thing is:

With cryptocurrency, you can be very rich on paper, but most of your cryptocurrency may not be liquid which means … your feeling of being rich and overly abundant in wealth is mostly a mental thing.

Which makes me think and philosophize:

Perhaps we should address wealth from a mindset and mental thing … not an objective numbers-based thing.

What is the upside of feeling wealthy mentally?

My basic thought:

The upside of feeling wealthy is that you don’t gotta worry or think about money (via negativa wealth), which allows you to focus your mental energies onto artistic, creative and philosophical pursuits.