Taijitu prior to 1686. It combines several abstract shapes, including a "Taiji" symbol illustrating the mutual complement of man and woman. In socialist times, it was alternatively interpreted as two fish symbolizing vigilance, because fish never close their eyes. The modern symbol has also been widely used in martial arts, particularly t'ai chi ch'uan (Taijiquan), and Jeet Kune Do, since the 1970s. In this context, it is generally used to represent the interplay between hard and soft techniques. The dots in the modern "yin-yang symbol" have been given the additional interpretation of "intense interaction" between the complementary principles. Similarities can be
Popular belief lacks a formal canon. Rituals take place before home altars or at temples, which have no fixed congregations. Adherents vary considerably in belief and practice. Generally, folk religionists are fatalistic yet believe that one's luck can be affected by pleasing ancestors or gods, by locating graves and buildings in places where vital natural forces are located (geomancy), and by balancing opposing forces (yin, yang) within one's body. In Korea, Buddhism, Confucianism, and Taoism have influenced the elite, while a folk religion has existed among the common people that resembles Chinese Folk Religion. However, unlike the Chinese case, most Korean spirit