Capítulo 981: Fusion.

Shi Lang had decided that he would fuse both his primordial spirits and fuse them together. It did seem like a risky thing, but he was going to do it anyway. The fight in his soul sea had already put him in danger, and now if he wanted to gain control of the situation, he would have to undergo the fusion. 

The Terran made an effort and pushed himself of the ground. He did not had the time and energy to put on clothes. He closed his eyes and began to look inside his soul sea. No matter how many spiritual avatars one had, at their core would be the true soul of the person. 

For example, you can have two different looking swords, but they would always be similar weapons, and they would have a similar essence.