At one time , Heian Nidan was Heian Shodan , but Funakoshi Shihan considered it too difficult for an introductory kata and changed the order so that Heian Shodan is taught first .
Heian Nidan is the first kata to use kokutsu dachi as its primary stance .
At one time , Heian Nidan was Heian Nidan   , but Funakoshi Shihan considered Heian Nidan too difficult for an introductory kata and changed the order so that Heian Nidan   is taught first .
Heian Nidan is the first kata to use kokutsu dachi as its primary stance .