The Fool stands for the innocence of the child. So he means openness and playful approach to life as well as the not-realising of danger and naivity. The openness and innocence of a child can be refreshing, making new experiences and mental suppleness possible. But these characteristics can become dangerous if they turn into starry-eyed credulity. Furthermore, the Fool`s playful approach to everything he meets can incline to irresponsibility and the disability to keep to engagements. On a more abstract level the Fool means the beginning, the starting point. He is the begin of life, the begin of the development of a human being. The card 0 The Fool is the starting point of a long journey of which the card XXI The World is the final point.