Self-fulfillment means feeling happy and satisfied because you are doing things that make you feel good about yourself. Just like when you build a really cool tower with your Legos or draw a great picture, you feel proud and happy, doing things that make you feel good about yourself is like building a tower or drawing a picture for grown ups. This might mean doing something you enjoy, like playing your favorite sport or listening to music, or doing something that helps other people, like volunteering to help animals or making someone smile by being kind. When you do things that make you feel good about yourself, you feel fulfilled, or like you have all the things you need to be happy, inside of you. It's important to remember that self-fulfillment is different for everyone, and what makes you feel happy and fulfilled might be different from what makes someone else feel happy and fulfilled.