Prajok spring in the northeast behind the Shuxiang Temple, it used to be famous, because it will not freeze even in winter, but when we went there was a big summer, so there was no way to verify, this spring water legend is the emperor's royal spring water, Every time the emperor comes to Wutai Mountain, he has to drink the Pakruo Spring here. The meaning of Pakru is originally wisdom. Drinking may really add wisdom.