As for what happened next, it wasn't all too surprising. Illusions worked perfectly as long as someone didn't know they were illusions but once that illusion was broken, even if a new much stronger, and perfectly seamless illusion was put in, it would still be imperfect, reality in the end would win through and that was what happened with Xie Rong
With his growing doubts, the little things he had overlooked before turned into large warning signs and one of them was how despite having the cultivation base of a foundation establishment cultivator he wasn't much stronger than he had been when he was in the body refinement stage, and with time he even seemed to be getting weaker by the day.