Hakko-Ryu in Chinese / Japanese...

八光流 (Hakkō-Ryū) is a style of jujutsu associated with Daito-Ryu.

The title Hakko-Ryu comes from the Japanese phrase which translates as “The Style of the Eighth Light,” or more literally, “Eighth Light Style.”

The 光 character is associated with brightness or brilliance. It can be used to describe someone of great talent or potential. So the meaning goes far beyond just light.