Money or Finance is often compared to the blood of the economy.
If you cut off the flow of blood in the body, then the isolated organ will not be able to exist for a long time.
With high blood pressure, the economy can burst from inflation. With low pressure, the economy begins to lose consciousness.
You can also compare Finance to Oxygen. In the process of economic activity, money is needed as an oxidizer. As a result of the combustion reaction, energy is released in the form of products created in the process of activity.
Any Project must be calculated from the point of view of Cash-Flow, otherwise it may "catch your breath", oxygen starvation may occur, up to a fatal outcome.