The path of martial arts is divided into three realms: Skin Training, Bone Tempering, and Sinew Transformation, each with three grades, for a total of nine. The lower three grades are Skin Training, the middle three are Bone Tempering, and the upper three are Sinew Transformation.
To live forever, one must transcend the ninth grade and reach the elusive realm said to exist only in legend: the Land Immortal Realm!
“Only by stepping beyond the Three Realms can one become a Land Immortal.”
