"Harmony" is at the core of the ethical ideas of Amy Tan' s novels. However, the "harmony" presented in her novels is characterized by positive and negative dimensions dialectically. The ethical reality of positive and negative dimensions leads to a complex ethical structure. It is the coexistence of both dimensions results in fascinating effects and ideological tension. The descriptions of positive and negative dimensions of "Harmony", the East and the West and yinyang get us to consider some problems on mutual gaze of yin-yang and space-time mix. The concept of "Harmony", the crucial ethical...