So-San
This pattern is practiced by the 5th degree and above.
So-San is the pseudonym of the great monk Choi Hyong Ung (1520 - 1604) during the Yi Dynasty. The 72 movements refer to his age when he organized a corps of monk soldiers with the assistance of his pupil Sa Myung Dang. The monk soldiers helped repulse the Japanese pirates who overran most of the Korean Peninsula in 1592.