Each kata has a set sequence of steps and techniques against imaginary opponents.
An important part of kata training is bunkai - application of the techniques.
It provides a necessary understanding of the content that contains hidden technologies that are
not what they appear to be at first glance. Bunkai literally means "analysis" or "disassembly".
Bunkai 1-5 consist of Heian Shodan, Heian Nidan, Heian Sandan, Heian Yondan and Heian Godan.