Taijitu the Tibetan designs have three or four swirls (representing the Three Jewels or the Four Noble Truths, i.e. as a triskele and a tetraskelion design), Lai Zhide's taijitu has two swirls, terminating in a central circle. The Ming-era design of the taijitu of two interlocking spirals has been reported as "yin-yang symbol" in the first half of the 20th century. The flag of South Korea, originally introduced as the flag of Joseon era Korea in 1882, shows this symbol in red and blue. This was a modernisation of the older (early 19th century) form of the Bat Quai Do used
Tai chi single ultimate, represented by the "taijitu" symbol . Tàijíquán theory and practice evolved in agreement with many Chinese philosophical principles, including those of Taoism and Confucianism. Tàijíquán training involves five elements, "taolu" (solo hand and weapons routines/forms), "neigong" and "qigong" (breathing, movement and awareness exercises and meditation), "tuishou" (response drills) and "sanshou" (self defence techniques). While tàijíquán is typified by some for its slow movements, many styles (including the three most popular: Yang, Wu and Chen) have secondary forms with faster pace. Some traditional schools teach partner exercises known as "tuishou" ("pushing hands"), and martial applications of the postures of