practice of Taekwondo. The WT's stated philosophy is that this goal can be furthered by adoption of the Hwarang spirit, by behaving rationally ("education in accordance with the reason of heaven"), and by recognition of the philosophies embodied in the taegeuk (the yin and the yang, i.e., "the unity of opposites") and the sam taegeuk (understanding change in the world as the interactions of the heavens, the Earth, and Man). The philosophical position articulated by the Kukkiwon is likewise based on the Hwarang tradition. Competition Taekwondo competition typically involves sparring, breaking, and patterns; some tournaments also include special events such as demonstration teams and self-defense (hosinsul). In Olympic Taekwondo competition, however, only sparring (using WT competition rules) is performed. There are two kinds of competition sparring: point sparring, in which all strikes are light contact and the clock is stopped when a point is scored; and Olympic sparring, where all strikes are full contact and the clock continues when points are scored. Sparring involves a Hogu, or a chest protector, which muffles any kick's damage to avoid serious injuries. Helmets and other gear are provided as well. Though other systems may vary, a common point system works like this: one point for a regular kick to the Hogu, two for a turning behind the kick, three for a back kick, and four for a spinning kick to the head. World Taekwondo (WT) Competition Under World Taekwondo (WT, formerly WTF) and Olympic rules, sparring is a full-contact event, employing a continuous scoring system where the fighters are allowed to continue after scoring each technique, taking place between two competitors in either an area measuring 8 meters square or an octagon of similar size. Competitors are matched within gender and weight division—eight divisions for World Championships that are condensed to four for the Olympics. A win can occur by points, or if one competitor is unable to continue (knockout). However, there are several decisions that can lead to a win, as well, including superiority, withdrawal, disqualification, or even a referee's punitive declaration. Each match consists of three two-minute rounds, with one minute rest between rounds, though these are often abbreviated or shortened for some junior and regional tournaments. Competitors must wear a hogu, head protector, shin pads, foot socks, forearm guards, hand gloves, a mouthpiece, and a groin cup. Tournaments sanctioned by national governing bodies or the WT, including the Olympics and