 We see here that Chunqiu Fanlu combines the five phases explanation of change and interaction with yin and yang principles. Yin and yang operate within the five phases, and are properties of the phases explaining their relationships to one another. It is in the Chunqiu Fanlu that we find the fusion of these two previously distinct correlative systems in an overarching correlative synthesis (even though the synthesis is not perfect—the systems are still very much treated separately in particular areas of the text, likely due to the composite nature of the text).