Unity of soul and blade!
You couldn't blame Wang Teng for being surprised. This was something extraordinary.
The unity of soul and blade was a god-like realm. It was vastly different from the water and fire conscious that Wang Teng possessed.
The water and fire conscious was directed at the Force attributes. On the other hand, the unity of blade and soul was directed at the blade attribute. When performing it, the person would merge with the blade conscious and execute boundless power.
One strike was enough to destroy the earth!
Of course, to reach this stage, the martial warrior must be powerful too. However, it was extremely difficult to reach this realm. You needed exceptional blade talent and some luck to achieve enlightenment.
For instance, Wang Teng possessed both Imperial Realm Enlightenment and ultimate stage blade talent, but he had only heard of the unity of soul and blade stage. He was nowhere near achieving it.