""...wrote the 'Preface to Six Harmonies Boxing in the 15th reign year of the Qianlong Emperor Inside it says, '...when [Yue Fei was a child, he received special instructions from Zhou Tong. He became extremely skilled in the spear method. He used the spear to create methods for the fist. He established a method called Yi Quan" Mysterious and unfathomable, followers of old did not have these skills. Throughout the Jin, Yuan and Ming Dynasties few had his art. Only Ji Gong" [Ji Longfeng "had it.""