Ghostly Qi entering the body

As Li Tian walked forward, he realized that the clouds around him were getting thicker and thicker. He couldn't even see clearly within a few meters.

"What?" Li Tian looked around, took out his celestial sword, and walked forward step by step.

"Where is the fragment of the celestial sword?" Li Tian thought to himself. When the crystal had moved, he had clearly felt the vibration of the celestial sword fragment. However, after entering this place, the celestial sword had not moved at all.

"Tsk." Li Tian was a little annoyed. He had to waste a lot of time wandering aimlessly in such a big place. Who knew if others would find the celestial sword fragment?

Furthermore, were the eight doors connected, or were they each a separate space? If the immortal sword fragment was not here but in another sect, his efforts would be in vain.