The I-Ching describes tortoise divination as the best method for making sense of the events of this world. Since the turtle was a godly beast by nature, sages would act in accordance with what was revealed on its shell, which would tell whether luck would be good or bad, whether action should be taken or not.
中國的卜卦祖典《易經》上記載，能解釋天下萬象者，莫大過蓍龜，烏龜是天生神物，聖人必須依其身上顯現的規則進退，遵照其身上的天地變化、吉凶行事作息。