section_path: Symbols and images
section_name: Symbols and images
paragraph_text: Symbols and images
  
  The taijitu, commonly known as the "yin and yang symbol" or simply the "yin-yang", and the bagua are important symbols in Taoism because they represent key elements of Taoist cosmology (see above). Many Taoist (as well as non-Taoist) organizations make use of these symbols, and they may appear on flags and logos, temple floors, or stitched into clerical robes. What has become the standardised yin-yang taijitu originated as a Taoist symbol in the 10th century CE during the early Song dynasty.
  
  The tiger and dragon are more ancient symbols for yin and yang respectively, and these two animals are still widely used in Taoist art. Taoist temples in southern China and Taiwan may often be identified by their roofs, which feature dragons, tigers, and phoenixes (with the phoenix also standing for yin) made from multicolored ceramic tiles. In general though, Chinese Taoist architecture lacks universal features that distinguish it from other structures.
  
  Taoist temples may fly square or triangular flags. They typically feature mystical writing, talismans, or diagrams and are intended to fulfill various functions including providing guidance for the spirits of the dead, bringing good fortune, increasing life span, etc. Other flags and banners may be those of the gods or immortals themselves.
  
  Drawings of the Big Dipper (also called the Bushel) are also important symbols. In the Shang dynasty of the 2nd millennium BCE, Chinese thought regarded the Big Dipper as a deity, while, in later periods, it came to symbolize Taiji. A related symbol is the flaming pearl, which stands for the pole star and may be seen on such roofs between two dragons as well as on the hairpin of a Celestial Master.
  
  Some Taoists saw the stars as "knots in the 'net of Heaven'" that connected everything in "heaven and earth".
  
  Many Taoists saw the Tao as "the pearl of the sage" and a "conjunction between yin... yang." Taoists also revered pearls more generally, seeing lung dragon celestials as emerging from the glint of light off of a pearl that existed "in the mists of chaos" and trapped in an endless cycle where they continually retrieve the pearl that makes them out of the mists. Some Internal Alchemy Taoists worshipped mercury as "divine water" and an embodiment of consciousness that was a "flowing pearl".
  
  In the later Qing dynasty, Taoists and intellectuals who leaned towards Taoism used the wuxing as symbols of leadership and good governance, using old religious texts and various historiographies made in prior dynasties to assign a phase from the five wuxing to different Chinese dynasties.
  
  Symbols that represent longevity and immortality are particularly popular, and these include: cranes, pine trees, and the peaches of immortality (associated with the Queen Mother of the West). Natural symbols are also common, and include gourds, caves, clouds, mountains, and the animals of the Chinese zodiac. Other symbols used by Taoists include: the Yellow River Map, the Luoshu Square, I Ching coins, Taoist talismans (fulu), the Four Symbols (mythical creatures), and various Chinese characters (such as the character for Tao and the shou ('longevity') character).
  
  Taoist priests also wear distinctive robes, such as the Daojiao fushi and Taoist versions of the Daopao, which symbolize their status and school affiliation.