That night, before going to bed, Lin Yun spent most of his time familiarizing himself with his mental strength. The role of mental strength was significant, and as Lin Yun became more accustomed to it, he also searched for information about it on the Cosmic Trading System.
He gained a lot of understanding about mental strength from this.
The soul is the core of a life, and mental strength is the vital energy that nourishes the soul.
Only the evolution of the soul can be termed as the true evolution of a life.
Many training systems may not initially involve soul training, but they will ultimately point to the soul.
Many civilizations' technologies are also closely related to the soul.
Just like a cosmic spacecraft!
A good cosmic spacecraft is immense in size and has many complicated functions. Naturally, the various operations are very complex, which requires a strong soul, a powerful mental strength to operate!
A powerful soul can handle many things!