The paper discusses the impact of fairy tales on children. Fairy tales are external factors that help the internal development of the nervous system. An important role in the development of the individual is played by The specific circumstances of mentoring, friendship, neighborhood and illness. Also, the modern way of life and the excessive use of filming play a big role. Every technological advancement diminishes the degree of development that man as an organism reaches. In contrast, it has been proven that the more children’s imagination is stimulated by storytelling and art, the more children will be able to imagine what they want for themselves and the world, and act creatively to achieve it. But the story cannot be told by anyone. The narrator must enter the child's own experience with imagination, instead of imposing a moral code on him from the outside in the form of stories that work through fear of consequences. Storytelling told in such a way gives the child an incentive to change behavior from within through the development of metaphorical images that become his. Fairy tales are tender stories, they address children, respect his experience and affirm his desire and capacity for growth, in all possible ways. Furthermore, the paper describes the methods of preparation and competence of the narrator. In order for a story to be told in an effective way, the narrator must be well acquainted with the story — moreover, it must be a part of him. Stories encourage the development of the senses - sensory integration, which is an important prerequisite for the proper development of the nervous system. The Case Study chapter describes an example of a boy with Asperger's Syndrome and the activities undertaken by kindergarten teachers.