There is a FolkLore Legend that a Master of The Martial Arts, Wang Lang, had Appeared before The Shaolin Temple to Challenge the Monks because he had Heard of their Kung-Fu Abilities and their Reputation As Undefeated Warriors. Accepting Wang Lang's Challenge after Persisting Profusely, the Shaolin Monks Defeated him. Wang Lang Trained and Sharpened his Techniques, Strengthened his Abilities, Returned to The Shaolin Temple to Challenge the Monks again 2 Times, and both Times he Left Bitterly Defeated. 

   He went to Live In Seclusion Within the Wilderness of Stoney Mountains, where One Day, Sitting by a Tree, he Witnessed a Fight Between a GrassHopper and a Praying Mantis, and Observed the OutCome. Despite Being smaller than the GrassHopper, the Praying Mantis Won the Fight, and having been Impressed, Wang Lang used a Blade of Grass to Play with The Praying Mantis and Tease him to Study the Insect's Fighting Style of Attacks & Defenses. 

   Wang Lang further Developed his Fighting Methods and Techniques with the new Application of The Style Of The Praying Mantis. He went back to The Shaolin Temple to make another Challenge to the Kung-Fu Skills of the undefeated Monks, and Defeated Every Single One.