Ryo
In Eastern philosophy, the energy of the sky is referred to as Yul, and the energy of the earth is referred to as Ryeo.
"Yuri" means yang. "Ryeo" is Eum, and "Yul" is the outside, and "Ryeo" is the inside.
It is only when Yul and Ryeo are in harmony without overflowing or lacking that they have a dynamic and balanced rhythm.
This perfect state is what we call "Yuryo."