This study attempts to explore the first 7-year development of children from the birth to tooth change which is based on R. Steiner's educational perspective of spiritual science of anthroposophy. This study adopts Steiner's metaphysical views to inductive and analyze the essence of life, and especially focus on how to understand and interpret the life of early children. After that, the study shows the significance and relevance of the essence of human life of picture in the theory of anthroposophy that makes sense of 7-year development. The conclusions have the following three parts. First, there is vertical connection of the three level of life essence which is significant interrelationship among the three powers of the soul, the four bodies and the twelve senses. Second, the horizontal connection and inductive analysis of the developmental theory of preschool children can interpret and construct completely to understand Steiner's anthroposophy about the first seven-year development. Third, the study clarifies some misunderstood 'keywords' for parents, teachers, researchers and general readers for reviewing those materials.