The meaning of that elder's words?

Another ability he has is the ability to create a strange domain, which revitalizes the surroundings and allows him to control them. Within this domain, he is like a real God.

It's one of those Gods that are only mentioned in fantasy.

He can create mountains out of nothing and even create mighty attacks from a slight movement.

That time in the Red Thunder Sect, he got some subordinates who are now among the Thirteen Seats of Silver Assassin, thanks to that domain.

Moreover, he has gradually realized that the power of this Law of Control using that domain is more terrifying than he thought. But he still feels that it is only a tiny portion of his power, which makes him feel more pensive.

Then would come the ability he recently discovered to pass cultivation from one body to another, which already made sense to him.