Ancient wisdom speaks: Know the heavens, know the earth, know oneself.
Humans stand between heaven and earth, naturally embodying the Yin Yang and the Five Elements, born with the spiritual energy of heaven and earth. The human spirit can connect with the heavens, comprehending the laws of the Heavenly Dao; while the human body is rooted in the earth, drawing sustenance from it.
Human actions can also have a reactive effect on heaven and earth, either harmonizing with the balance of the world or disturbing its order.
This is the renowned "Heaven, Earth, Human Trinity" theory.
Humanity and the world resonate with and depend on each other; thus, knowing the heavens and the earth, one can know oneself.
And for a Martial Artist entering the fifth-grade realm, blending with heaven and earth is the process of knowing the world.
So Xu Zhou uttered the words: "Once I enter the fifth-grade, only today do I truly know myself!"
