The swastika, called "manji" in Japanese, was originally the emblem for Shorinji Kempo, as it is used in Dharmic religions, as well as by many cultures around the world, for
centuries. The swastika can either mean love (left-facing) and strength (right-facing) which symbolize Kongo-zen teaching.
However, given the Nazi connotations that the swastika carries, the WSKO had been using the character 拳 (ken), which means "fist", in the center of tate-manji (swastika guarded
by shields) on the emblem or using nagare-manji which meant rounded swastika.