Googling "money" gives us this:
Anything of value that serves as a (1) generally accepted medium of financial exchange, (2) legal tender for repayment of debt, (3) standard of value, (4) unit of accounting measure, and (5) means to save or store purchasing power.
But I don't think money ends there; it has a much more profound meaning.
Money buys you time.
Time is the most precious asset that we have as humans. There is only a finite amount of it, and once we lose it, we never get it back.
With wealth comes the ability to choose how to spend your time. The greater your wealth, the less you are obliged to earn money for survival. And, at some point, you can have enough wealth where you aren't obliged to earn money for survival at all.
This all works thanks to the fact that money can earn more money. Because of a generally growing economy, money, if invested properly in appreciating assets, will earn interest. If we have a big enough nest egg, the interest it earns can be greater than our living expenses.
Unfortunately, if you don't allocate the money properly towards appreciating assets, you lose out on this precious ability to buy back time.
That's a great baseline goal we should all strive for, regardless of how far you are in the hole with debt, or how inflated your lifestyle has become. I can't think of a reason not to want this.
If you think about your own mortality and the fact that you will eventually be gone one day, what other conclusion is there, than to value our time as if it's our only finite resource?