The purpose of a budget is to help thy purse to fatten.

It is to assist thee to have thy necessities and, insofar as attainable,
thy other desires.

It is to enable thee to realize thy most cherished desires by defending them from thy casual wishes.

Like a bright light in a dark cave thy budget shows up the leaks from thy purse and enables thee to stop them and control thy expenditures for definite and gratifying purposes.