The power of the fu is attested, in fact, throughout Chinese history. The Yellow Emperor, for example, progenitor of the Chinese people, was said to have defeated Ch'ih Yu at the battle of Cholu by the power of a fu which he had obtained from the Queen Mother of the West.
汝輩難道忘了，當年你們老祖宗黃帝能在涿鹿大勝蚩尤，贏得了所謂民族戰爭，還不是得我瑤池西王母授符之功。得空查查你們陽世正史，看看祖上先人怎麼說？