Zhou Shu had reached greater mastery in the Visualization of the Five Mountains' True Form. With a thought, a figure identical to him appeared in front of him.
The figure looked translucent, but it gave off a very life-like feeling.
This was the manifestation of his divine soul, visible to the naked eye.
At this level, even if his physical body was completely destroyed, he could still temporarily survive with his soul.
It was also because of this that Shi Changsheng was able to survive as the Longevity Sword back then. Only with the manifestation of his soul could he become one with the weapon.
Combining one's soul with a weapon had very stringent requirements.
Without a Grotto-Heaven realm cultivation, there was no need to think about it.
But there was no such high threshold for martial artists to refine their intrinsic divine weapons.