Banking is a way to save your money and get it when you need it. Banks are like special stores that help you do this. They have special rooms that hold your money safely so no one can get it without your permission. Banks also give you a special card that lets them know who you are and how much money you have saved. With this card, you can buy things like food or clothes and the money will come out of your savings. The bank will keep track of your money and make sure you don't spend too much.