Building or repairing your personal credit refers to the process of establishing a positive credit history or improving a damaged credit score. This involves paying bills on time, reducing credit card balances, and managing credit responsibly. Building or repairing your credit can help you qualify for loans, credit cards, and other financial products at better interest rates, which can save you money in the long run. It is important to understand your credit score and take steps to improve it if necessary, as it can impact your financial well-being in many ways.