Jiang Ding's foundation cannot bear the Sword Soul.
This is not a matter of the body's toughness, Body Refining Techniques are useless.
The bodies of Sword Cultivators and Magic Cultivators are akin to super-intelligent chips, capable of greatly amplifying Sword Intent, Magic Intention, Mana, Divine Soul, and other strengths, facilitating their birth and growth; the body's hardness has little to do with whether it can endure a Sword Soul.
Just like a computer's software and hardware systems.
Right now, the hardware system cannot load the software system. It's not just a matter of replacing the hardware with steel or tougher material; the entire hardware system must be upgraded.
Alternatively, streamline the software algorithms, achieving with one unit of computation what previously required several, thereby lowering hardware requirements.
"If Swordsmanship advances to the Sixth Realm, the Sword Spirit Realm, this effect might also be achieved…"
