Core Refining Stage.

Li Jun floated in nothingness. His mind was empty as he lay backward and looked up at the darkness above. He wasn't sure how long it had been, nor did he have the capacity to care. 

The spiritual energy flowed through him at a rate he previously didn't think possible. It was like he had become one with it, his soul changing to better absorb the invisible energy, except it was no longer invisible.

He could see it as thin streams of twisting and winding light. The thicker it was, the brighter it burned, and he felt his body pull it towards him. 

Something had changed within him. He was initially worried when he felt his spirit core shrinking, but once he felt the spiritual energy within him had grown thicker along with the shrinking, his worries eased.