When the seigneur swore fealty to gods on the feudal ceremony, the king had got a permanent affiliation with the seigneur except lineal consanguinity, which was supervised by gods every time.

• 周公东征之后，盟誓成为构建西周国家政权的重要组织形式，使诸侯与天子建立了宗法血缘关系之外依靠神灵监督效忠的政治从属关系。