When Meng Qi was pondering a bladesmanship that was not related to the change of the heaven and earth but close to Dharma and Logos, the first one that came into his mind was the "Heaven Blade". The "Heaven Blade" Song Que integrated the essence of moves into the blade. A casual display of one move could be powerful. Sometimes a seemingly normal attack contained unexplainable changes as if the heaven and earth were incorporated, equal to the realm of Nine Strategies Beyond the Swords.
The only difference was that the Nine Strategies Beyond the Swords was unpredictable and targeted the enemies' flaws, whereas the strength of "Heaven Blade" was a momentum which focused on itself and was domineering and horrible.
Respectively, they perfectly displayed the characteristics of blades and swords. However, their styles were quite different. They could transform into each other at any time like the balance of yin and yang in a broad sense.