One thing that Amon noticed when he saw the Xin Lai Palm in action was the radial force could either go clockwise or counterclockwise. It was not fixed. Yet, it couldn't change during execution. If it started clockwise, it continued in that direction until the art ended. The telltale sign was the tai chi symbol following the art execution. One could determine the direction of the force by observing the spinning direction of the symbol.
The symbol spun extremely fast. Even if someone knew the theory, a normal person would find it hard to see the spinning direction of the symbol. Thankfully, Amon had the Great Virulent Serpent. Even when he did not activate this art, it had the passive effect of improving his senses. His eyes saw everything in slightly slow motion. Added to his keen perception, he could ascertain the spinning direction of the Xin Lai Palm just as it was executed.
