The Committee for the Advance of Money is a group of people who work together to lend out money to other people. When someone needs some extra money to buy something or pay for something, but they don't have enough saved up, they can go to the Committee and ask for a loan. The Committee looks at the person's job, how much money they make, and other important things to decide if they can give them the loan. If the Committee thinks the person can pay back the loan, they will give them the money. The person then has to pay back the loan with a little extra money added on top, called interest. The Committee uses the interest to pay for their own expenses and salaries. It's like borrowing someone's toy, but you have to give them a little extra toy back when you're done playing with it.