Existentialism is a way of thinking about life and the world around us. It asks questions like "What is the meaning of life?" and "What can we do to make our life meaningful?" Existentialists believe that we should take responsibility for our own life decisions, and that we should be living a meaningful and authentic life. We should think for ourselves, instead of relying on others to tell us what to do, or what is right and wrong. Existentialism encourages people to find their own meaning, and to find their own ways to be true to themselves.