Flabbergasted! 

Everyone was completely flabbergasted! 4,000 points of spiritual power placed one at the pinnacle of the Spirit Sea realm. After reaching that level, they'd have a chance at making a breakthrough to the Spirit Abyss realm in the future!

What was the Spirit Abyss realm?

At that realm, one's spiritual power would become an abyssal prison. If his spirit were the world, then the upper boundary would be heaven while the lower boundary would be hell! This was the Spirit Abyss realm, the realm that was commonly referred to as the limit for a normal human's spiritual power! With this level of spiritual power, one would be able to fuse with any level of spirit souls; even orange and red ones. 

However, each person could only fuse with one orange and one red soul spirit, and after fusing with one of those two types of soul spirits, one's capacity to fuse with other soul spirits would revert back to that of a being with spiritual power...