Heaven and Earth are described as “Kenkon” in Japanese. “Ken” indicates heaven and “Kon” indicates earth. Heaven is shown as round and perfect whilst earth is shown as an imperfect square, symbolizing the perfection of heaven and imperfection of earth.
The meaning of Goju is directly related to the badge since this also means hard and soft “go” means hard and “ju” means soft.
it is necessary to explain that the symbol within the circle is the family crest of the Miyagi family, since the idea of heaven and earth, hard and soft originated with master Miyagi.