This article discusses play therapy and the state imagery of children suffering from pervasive developmental disorders from the perspective of corporeity, based on the idea that a person develops and is cultivated in his or her relationships with others. To formulate a symbol, the person must obtain a self-convergence and establish the corporal imagery, and that is created in the relationships with others. Moreover, to obtain self-convergence it is important that a person is attracted to and be contained in others. Children with pervasive developmental disorders are deemed to have a weak awareness of orientation toward and intercorporeity with others. Therefore, it is essential for the therapist to start treatment by first talking about what he or she felt or thought about the children, demonstrating that a live therapist exists. These children also have a weak sense of self because their weak body sensations; however, they were observed to have developed a sense of self along with the feeling of body sensations through the receipt of sensations to which meanings are attached, after opening up through relationships with others. It is further considered that spatio-temporal axis is experienced and established through the relationships with others.