The martial arts of the human race were initially created by imitating the combat methods of monsters. Even the earliest studies of Qi circulation were based on the techniques of tree spirits and wood demons, who absorb and utilize spiritual energy. Naturally, physical techniques were no exception.
If the initial enlightenment of strength can be attributed to the apelike monsters, then the power of flexibility and hidden strength could be traced to monsters like dragons, eels, snakes, and pythons.
The status of the cloud dragon is undoubtedly the highest amongst studying the art of flexibility, as Bu Lin suggested, regardless of Tang Luo's strength, he wouldn't have been able to prevail against six cloud dragons.
But if his body technique doesn't work, it doesn't mean that Tang Luo is powerless. Facing the menacing dragon, Tang Luo extended his right hand, and opened up the Yin-Yang Grinding Plate.