Taegeuk 4 Jang symbolizes the "Jin", one of the 8 divination signs, which represent the thunder
meaning great power and dignity. New techniques are sonnal-momtong-makki, pyon-son-kkeut-jireugi,
jebipoom-mok-chigi, yop-chagi, momtong-bakkat-makki, deung-jumeok-olgul-apchigi and mikkeurombal
[slipping foot] techniques. Various movements in preparation for the kyorugi and lot of dwit-kubi
cases characterize it. The 5th Kup-grade trainees practice this poomsae.