When Ji Yuan had displayed the sword art of his black sword, he was actually mustering his life force energies from his cultivation body.
And this sword art was unlike any of the sword art that Ji Yuan had used before; it was because it was executed using the heavenly dao of Little Yui.
In order to use the heavenly dao of Little Yui, not only must Ji Yuan gather his sword intentions and life force energies but he also had to word the sword concept of the heavenly dao of this profound sword art aloud which was the One Sword of the Great Void that divides the Heavens and the Earth; the Dividing Sword of the Great Void.
Actually, there was a second sword concept that Ji Yuan did not manage to word its sword concept because of cultivation core was too unstable for him to muster his life force energies to complete it.
The second sword concept is: The Dividing One Sword that destroys all cultivation concepts, returning everything to the Great Void.
