True Core
Ryu felt his heart freeze over, but he quickly recollected himself. This was definitely no normal level of problematic matter.
The matter of reincarnation was deeply ingrained into the culture of every True Realm. The Cycles of Life, Death, and Reincarnation didn't need to be further explained, their importance was obvious by their titles alone.
If Reincarnation was cut off, there would obviously be no Life, there could only be Death. It was the equivalent of the passing of a World.
Even with this said, Ryu knew that Ailsa had held back in her words… Though everyone claimed that a connection to the Heavens insisted in them all, this was just the human way of overinflating their own importance. While many truly believed one's Mental Realm and Dantian acted as bridges to the Heavens, the reality was that they acted as bridges to one's Protector Spirit which was the true bridge.