Taijitu as the Joseon royal standard. Since the 1960s, "yin-yang symbol" is most widely applied to the "He tu" symbol which combines the two interlocking spirals with two dots. In the standard form of the contemporary "yin-yang symbol", one draws on the diameter of a circle two non-overlapping circles each of which has a diameter equal to the radius of the outer circle. One keeps the line that forms an "S", and one erases or obscures the other line. The design is also described "pair of fishes nestling head to tail against each other". The Soyombo symbol of Mongolia may be
Yin Yang Style Li (离), Kun (坤), and Dui (兑) which correspond to and form the changing ways of the Yin and Yang and the Bagua. The postures of crane walking and eagle spanning also correspond to the eight directions: East, West, South, North, Northeast, Northwest, Southeast and Southwest of the Yin and Yang and the Eight Trigrams. The movements also mimic the arc in the Yin Yang Fish. There are eight characters, eight directions, eight body sections, eight steps, eight posture palms, eight energies and eight coincidences. The Python Form Palms of Tian's family Yin Yang Bagua Zhang consists of eight postures: