A major goal of this chapter is to show that culture, psyche, and evolutionary biology constitute one another. The 1st section develops the thesis that culture and the psyche are mutually constitutive. The 2nd section compares European–American models of independence with East Asian models of interdependence, contrasting 2 very different conceptions of the self and social relations. The 3rd section focuses on research concerning East Asia in regard to conceptions of the self and social relations. The 4th section explores a variety of strategies for understanding the links between culture and psyche, including developing typologies or dimensions of sociality that differentiate the world's cultures and identifying structures for social coordination. The final section discusses how the human brain has evolved to use cultural models that enable people to coordinate and cooperate in diverse culture-specific adaptations …