What is a charging bull bligh

Cattle hoof bligh is popular in the western and southern and northern dynasties period a method of divination "the Book of Jin" records: "husband Yu Guore military, very cow worship, with its hoof, for good or ill luck.Hoof solution for fierce, for us."Yang Fang had recorded in "the five classics having" : "here's beef bones of things, is in bad, does not.Cattle not wisdom, bone collector if this effect."