Abstract
So far I found that there are common spatial images in the sand-play constructions by males and females in each developmental stage. From the view point of behavioural biology, we ask now why. The innate nature in human is investigated in this paper. Each animal has its own world image in each developmental stage. Play of young animals always serves to teach something. Play carrys out important functions to form their world images. To compare the formation of animals' world images with that of human, there appears the innate elements in human world images. One of human plays, to use objects endowed with special and symbolic meanings for the representation of an imagined scene in a circumscribed sphere, is grounded in human's evolution and developed in the toy world of childhood (E. H. Erikson). I call it world-image-play. This kind of human ability is the basis of the formation of human world images and it is the origin of the act of creation. The innate nature in human always conducts us through mood or feelings to accomplish the life cycle proper of the human race. And it is mood or feelings that first open the space there. To study the innate nature in human is to know the common denominators between any cultural people. By this, we will be able to know profoundly the meanings of originalities in the spatial characteristics of peoples and also the causes of the differentiations.
