The education of a Hwarang was supported by the king and generally lasted ten years, after which the youth usually entered into some form of service to his country. King Chin Hung sent the Hwarang to places of scenic beauty for physical and mental culture as true knights of the nation. For hundreds of years the Hwarang were taught by Kuk-Son in social etiquette, music and songs, and patriotic behavior
A Hwarang candidate had to be a man of character, virtue, and countenance. The Hwarang trained to improve their moral principles and military skills. To harden their bodies, they climbed rugged mountains, swam turbulent rivers in the coldest months, and drove themselves unmercifully to
The youth were taught dance, literature, arts, and sciences, and the arts of warfare, chariot, archery, and hand-to-hand combat. The hand-to-hand combat was based upon the Um-Yang principles of Buddhist philosophy and included a blending of hard/soft and linear/circular techniques. The art of foot fighting was known as Subak and was practiced by common people throughout the three kingdoms. However, the Hwarang transformed and intensified this art and added hand techniques, renaming it Taekkyon. The Hwarang punches could penetrate the wooden chest armor of an enemy and kill him. Their foot techniques were said to be executed at such speed that opponents frequently thought that the feet of Hwarang warriors were swords.