There is an opinion that the more money you spend, the more you get in return, it is interesting to find out who really works in this direction. I spend enough money, but I have a fixed income, therefore I will not be able to get more. I don't have rich relatives, and I don't expect an inheritance either. I want to get rich, not to deny myself, but I have to save on everything. Who really faced big expenses and received even more? How does it work, maybe I don't understand the essence of it correctly?
I don't think that's true in most cases. Instead of spending more money, you should save more and invest with it. When you don't invest, your savings don't make any sense, because money is lost its value over time. In general, even interest income cannot keep the value of money. That's why the money must be used somewhere, especially if your country have high inflation rates. This applies not only to real estate or crypto-currency investments, but to anything you can think of that preserves and increases its value.