It sounds like you're asking about the "four walls" in the context of budgeting, which typically refers to the essential, non-negotiable expenses that keep your household running. These are the core living costs you must cover before anything else.

The Four Walls of Budgeting

1. Housing
   Rent or mortgage payments, property taxes, and home insurance.

2. Utilities
   Electricity, water, gas, heating, and sometimes internet or phone services.

3. Food
   Groceries and essential household supplies.

4. Transportation
   Costs related to getting to work or essential places, such as fuel, public transit fares, car payments, or insurance.

Priority of the Four Walls in Your Budget

These four walls should be your highest priority because they cover your basic needs and keep your household functioning. Ideally, you allocate funds to these expenses before discretionary spending or savings goals. Without covering these, your living situation and daily life could become unstable.

Recommended Budget Priority Order:

1. Four Walls (Housing, Utilities, Food, Transportation) - Ensure these are fully funded first.
2. Debt Payments - To avoid penalties and maintain credit.
3. Savings - Emergency fund, retirement, etc.
4. Discretionary Spending - Entertainment, dining out, hobbies.

If you want, I can help you create a sample budget or suggest ways to optimize your spending on these essentials!