The closer you are to the vitality of heaven and earth, the easier it is to absorb the vitality of heaven and earth. For example, Ji Ning was very close to water when he was a child. Of course, later he practiced the 'Nine-horned Electric Snake Escape Technique' and his body became close to thunder and lightning. This 'Yang Quding' is the one who is close to the water. The kind that has very poor harmony with the vitality of heaven and earth....