Since the process was starting to become unstable, Raymond quickly stopped trying, and let his soul power and sword force dissipate. Although he wanted to be stubborn and power through, he knew the consequences could become dire if he wasn't careful. Since he also knew that his talent regarding the soul was pretty good, he wasn't in a hurry.
Considering the speed at which he cultivated and upgraded his talent, Raymond had realised that there was no point in him being hasty. Since he had around a hundred years of natural life in the mortal realms, Raymond felt like living until he was 70 or 80 would be pretty realistic. That meant he had more than 50 years of cultivation time to chase a breakthrough to the enlightenment realm and prolong his life.