Yijing's cosmology with the concepts of alternation between Yin and Yang and primitive thinking mode serve as the theore《易经》的阴阳变化观念和带有浓厚的原始思维特性的宇宙观，是阴阳五行家思想的理论基石，阴阳五行家的宇宙发生图式和序列便滥觞于此。